122040002120 has 16 divisors (see below), whose sum is σ = 274590004860. Its totient is φ = 48816000832.

The previous prime is 122040002053. The next prime is 122040002129. The reversal of 122040002120 is 21200040221.

It can be written as a sum of positive squares in 2 ways, for example, as 102895959076 + 19144043044 = 320774^2 + 138362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122040002095 and 122040002104.

It is not an unprimeable number, because it can be changed into a prime (122040002129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525499987 + ... + 1525500066.

Almost surely, 2^122040002120 is an apocalyptic number.

122040002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122040002120 is an abundant number, since it is smaller than the sum of its proper divisors (152550002740).

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

122040002120 is a wasteful number, since it uses less digits than its factorization.

122040002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051000064 (or 3051000060 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122040002120 its reverse (21200040221), we get a palindrome (143240042341).

The spelling of 122040002120 in words is "one hundred twenty-two billion, forty million, two thousand, one hundred twenty".