100102210021220 has 48 divisors (see below), whose sum is σ = 229329900777600. Its totient is φ = 36400035736320.

The previous prime is 100102210021199. The next prime is 100102210021249. The reversal of 100102210021220 is 22120012201001.

It is a super-2 number, since 2×100102210021220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100102210021195 and 100102210021204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5704976 + ... + 15256184.

It is an arithmetic number, because the mean of its divisors is an integer number (4777706266200).

Almost surely, 2^{100102210021220} is an apocalyptic number.

100102210021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100102210021220 is an abundant number, since it is smaller than the sum of its proper divisors (129227690756380).

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

100102210021220 is a wasteful number, since it uses less digits than its factorization.

100102210021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9598868 (or 9598866 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100102210021220 its reverse (22120012201001), we get a palindrome (122222222222221).

The spelling of 100102210021220 in words is "one hundred trillion, one hundred two billion, two hundred ten million, twenty-one thousand, two hundred twenty".