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210112112011020 = 22357347970801829
BaseRepresentation
bin101111110001100010001001…
…110011001010011100001100
31000112221112002100101120020020
4233301202021303022130030
5210014434101133323040
62022512101032022140
762154046002233112
oct5761421163123414
91015845070346206
10210112112011020
1160a4805668962a
121b695175231950
13903164434915b
1439c56a262bab2
151945771715cd0
hexbf1889cca70c

210112112011020 has 48 divisors (see below), whose sum is σ = 596373008350560. Its totient is φ = 55262363705856.

The previous prime is 210112112010961. The next prime is 210112112011111. The reversal of 210112112011020 is 20110211211012.

It is a happy number.

It is a super-2 number, since 2×2101121120110202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23985396535 + ... + 23985405294.

It is an arithmetic number, because the mean of its divisors is an integer number (12424437673970).

Almost surely, 2210112112011020 is an apocalyptic number.

210112112011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112112011020 is an abundant number, since it is smaller than the sum of its proper divisors (386260896339540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210112112011020 is a wasteful number, since it uses less digits than its factorization.

210112112011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47970801914 (or 47970801912 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210112112011020 its reverse (20110211211012), we get a palindrome (230222323222032).

The spelling of 210112112011020 in words is "two hundred ten trillion, one hundred twelve billion, one hundred twelve million, eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 73 146 219 292 365 438 730 876 1095 1460 2190 4380 47970801829 95941603658 143912405487 191883207316 239854009145 287824810974 479708018290 575649621948 719562027435 959416036580 1439124054870 2878248109740 3501868533517 7003737067034 10505605600551 14007474134068 17509342667585 21011211201102 35018685335170 42022422402204 52528028002755 70037370670340 105056056005510 210112112011020