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100211110221020 = 2257170571204381
BaseRepresentation
bin10110110010010000110111…
…101000001001010011011100
3111010211002101120102220211112
4112302100313220021103130
5101113324323204033040
6553044203135241152
730052004505334211
oct2662206750112334
9433732346386745
10100211110221020
1129a26325248917
12b2a57020791b8
1343bbb371715a6
141aa635a695b08
15b8bac3306365
hex5b2437a094dc

100211110221020 has 24 divisors (see below), whose sum is σ = 213407322051168. Its totient is φ = 39519874452800.

The previous prime is 100211110220999. The next prime is 100211110221067. The reversal of 100211110221020 is 20122011112001.

It is a super-2 number, since 2×1002111102210202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100211110220986 and 100211110221004.

It is a congruent number.

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, 35285600771 + ... + 35285603610.

It is an arithmetic number, because the mean of its divisors is an integer number (8891971752132).

Almost surely, 2100211110221020 is an apocalyptic number.

100211110221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211110221020 is an abundant number, since it is smaller than the sum of its proper divisors (113196211830148).

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

100211110221020 is a wasteful number, since it uses less digits than its factorization.

100211110221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70571204461 (or 70571204459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100211110221020 its reverse (20122011112001), we get a palindrome (120333121333021).

The spelling of 100211110221020 in words is "one hundred trillion, two hundred eleven billion, one hundred ten million, two hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 70571204381 141142408762 282284817524 352856021905 705712043810 1411424087620 5010555511051 10021111022102 20042222044204 25052777555255 50105555110510 100211110221020