120001012122 has 32 divisors (see below), whose sum is σ = 254142168192. Its totient is φ = 37644061184.

The previous prime is 120001012111. The next prime is 120001012129. The reversal of 120001012122 is 221210100021.

It is a junction number, because it is equal to n+sod(n) for n = 120001012098 and 120001012107.

It is not an unprimeable number, because it can be changed into a prime (120001012129) 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 15 ways as a sum of consecutive naturals, for example, 1278958 + ... + 1369574.

It is an arithmetic number, because the mean of its divisors is an integer number (7941942756).

Almost surely, 2^120001012122 is an apocalyptic number.

120001012122 is an abundant number, since it is smaller than the sum of its proper divisors (134141156070).

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

120001012122 is a wasteful number, since it uses less digits than its factorization.

120001012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103622.

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

Adding to 120001012122 its reverse (221210100021), we get a palindrome (341211112143).

The spelling of 120001012122 in words is "one hundred twenty billion, one million, twelve thousand, one hundred twenty-two".