100120222220 has 72 divisors (see below), whose sum is σ = 231359760240. Its totient is φ = 36290643840.

The previous prime is 100120222211. The next prime is 100120222247. The reversal of 100120222220 is 22222021001.

It is a junction number, because it is equal to n+sod(n) for n = 100120222195 and 100120222204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48011 + ... + 450050.

Almost surely, 2^100120222220 is an apocalyptic number.

100120222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120222220 is an abundant number, since it is smaller than the sum of its proper divisors (131239538020).

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

100120222220 is a wasteful number, since it uses less digits than its factorization.

100120222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498135 (or 498110 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100120222220 its reverse (22222021001), we get a palindrome (122342243221).

The spelling of 100120222220 in words is "one hundred billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty".