20000122122 has 32 divisors (see below), whose sum is σ = 40586337792. Its totient is φ = 6569616384.

The previous prime is 20000122069. The next prime is 20000122123. The reversal of 20000122122 is 22122100002.

It is a junction number, because it is equal to n+sod(n) for n = 20000122098 and 20000122107.

It is not an unprimeable number, because it can be changed into a prime (20000122123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61863 + ... + 209349.

It is an arithmetic number, because the mean of its divisors is an integer number (1268323056).

Almost surely, 2^20000122122 is an apocalyptic number.

20000122122 is an abundant number, since it is smaller than the sum of its proper divisors (20586215670).

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

20000122122 is a wasteful number, since it uses less digits than its factorization.

20000122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147822.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20000122122 its reverse (22122100002), we get a palindrome (42122222124).

The spelling of 20000122122 in words is "twenty billion, one hundred twenty-two thousand, one hundred twenty-two".