120100021122 has 16 divisors (see below), whose sum is σ = 240718838400. Its totient is φ = 39946874352.

The previous prime is 120100021031. The next prime is 120100021123. The reversal of 120100021122 is 221120001021.

It is a super-2 number, since 2×120100021122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120100021098 and 120100021107.

It is not an unprimeable number, because it can be changed into a prime (120100021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21613497 + ... + 21619052.

It is an arithmetic number, because the mean of its divisors is an integer number (15044927400).

Almost surely, 2^120100021122 is an apocalyptic number.

120100021122 is an abundant number, since it is smaller than the sum of its proper divisors (120618817278).

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

120100021122 is a wasteful number, since it uses less digits than its factorization.

120100021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43233017.

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

Adding to 120100021122 its reverse (221120001021), we get a palindrome (341220022143).

The spelling of 120100021122 in words is "one hundred twenty billion, one hundred million, twenty-one thousand, one hundred twenty-two".