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101211202110220 = 22519725688122363
BaseRepresentation
bin10111000000110100010001…
…101111111100001100001100
3111021100200210200202210121021
4113000310101233330030030
5101231221020220011340
6555131441231243524
730214160640204616
oct2700642157741414
9437320720683537
10101211202110220
112a2814800254a4
12b4274aa9795a4
1344622384a0c27
141adc910dbbdb6
15ba7b07b6de4a
hex5c0d11bfc30c

101211202110220 has 24 divisors (see below), whose sum is σ = 213622425579024. Its totient is φ = 40278975863616.

The previous prime is 101211202110203. The next prime is 101211202110257. The reversal of 101211202110220 is 22011202112101.

It is a super-3 number, since 3×1012112021102203 (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101211202110194 and 101211202110203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12844057242 + ... + 12844065121.

It is an arithmetic number, because the mean of its divisors is an integer number (8900934399126).

Almost surely, 2101211202110220 is an apocalyptic number.

101211202110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211202110220 is an abundant number, since it is smaller than the sum of its proper divisors (112411223468804).

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

101211202110220 is a wasteful number, since it uses less digits than its factorization.

101211202110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25688122569 (or 25688122567 counting only the distinct ones).

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

Adding to 101211202110220 its reverse (22011202112101), we get a palindrome (123222404222321).

The spelling of 101211202110220 in words is "one hundred one trillion, two hundred eleven billion, two hundred two million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 25688122363 51376244726 102752489452 128440611815 256881223630 513762447260 5060560105511 10121120211022 20242240422044 25302800527555 50605601055110 101211202110220