20012120122 has 16 divisors (see below), whose sum is σ = 30994589952. Its totient is φ = 9680758560.

The previous prime is 20012120099. The next prime is 20012120207. The reversal of 20012120122 is 22102121002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209598 + ... + 289750.

It is an arithmetic number, because the mean of its divisors is an integer number (1937161872).

Almost surely, 2^20012120122 is an apocalyptic number.

20012120122 is a deficient number, since it is larger than the sum of its proper divisors (10982469830).

20012120122 is a wasteful number, since it uses less digits than its factorization.

20012120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84213.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012120122 its reverse (22102121002), we get a palindrome (42114241124).

The spelling of 20012120122 in words is "twenty billion, twelve million, one hundred twenty thousand, one hundred twenty-two".