20010122122 has 16 divisors (see below), whose sum is σ = 30726477792. Its totient is φ = 9769752720.

The previous prime is 20010122117. The next prime is 20010122131. The reversal of 20010122122 is 22122101002.

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, 424968 + ... + 469699.

It is an arithmetic number, because the mean of its divisors is an integer number (1920404862).

Almost surely, 2^20010122122 is an apocalyptic number.

20010122122 is a deficient number, since it is larger than the sum of its proper divisors (10716355670).

20010122122 is a wasteful number, since it uses less digits than its factorization.

20010122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894933.

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

Adding to 20010122122 its reverse (22122101002), we get a palindrome (42132223124).

The spelling of 20010122122 in words is "twenty billion, ten million, one hundred twenty-two thousand, one hundred twenty-two".