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210112210011220 = 225111261975683929
BaseRepresentation
bin101111110001100010001111…
…101001000000010001010100
31000112221112100011210111020021
4233301202033221000101110
5210014434301230324340
62022512114452314524
762154051302226016
oct5761421751002124
91015845304714207
10210112210011220
1160a480a6a34630
121b6951a2012a44
13903165b73c63a
1439c56b165c1b6
15194577a122e4a
hexbf188fa40454

210112210011220 has 48 divisors (see below), whose sum is σ = 481386123086400. Its totient is φ = 76398384280320.

The previous prime is 210112210011127. The next prime is 210112210011229. The reversal of 210112210011220 is 22110012211012.

It is a junction number, because it is equal to n+sod(n) for n = 210112210011194 and 210112210011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112210011229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35065785 + ... + 40618144.

It is an arithmetic number, because the mean of its divisors is an integer number (10028877564300).

Almost surely, 2210112210011220 is an apocalyptic number.

210112210011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112210011220 is an abundant number, since it is smaller than the sum of its proper divisors (271273913075180).

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

210112210011220 is a wasteful number, since it uses less digits than its factorization.

210112210011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75696568 (or 75696566 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210112210011220 its reverse (22110012211012), we get a palindrome (232222222222232).

The spelling of 210112210011220 in words is "two hundred ten trillion, one hundred twelve billion, two hundred ten million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 12619 25238 50476 63095 126190 138809 252380 277618 555236 694045 1388090 2776180 75683929 151367858 302735716 378419645 756839290 832523219 1513678580 1665046438 3330092876 4162616095 8325232190 16650464380 955055500051 1910111000102 3820222000204 4775277500255 9550555000510 10505610500561 19101110001020 21011221001122 42022442002244 52528052502805 105056105005610 210112210011220