100120021122 has 32 divisors (see below), whose sum is σ = 218456933184. Its totient is φ = 30337560000.

The previous prime is 100120021097. The next prime is 100120021139. The reversal of 100120021122 is 221120021001.

It is a super-2 number, since 2×100120021122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100120021098 and 100120021107.

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, 1384872 + ... + 1455372.

It is an arithmetic number, because the mean of its divisors is an integer number (6826779162).

Almost surely, 2^100120021122 is an apocalyptic number.

100120021122 is an abundant number, since it is smaller than the sum of its proper divisors (118336912062).

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

100120021122 is a wasteful number, since it uses less digits than its factorization.

100120021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92034.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100120021122 its reverse (221120021001), we get a palindrome (321240042123).

The spelling of 100120021122 in words is "one hundred billion, one hundred twenty million, twenty-one thousand, one hundred twenty-two".