122040002500 has 60 divisors (see below), whose sum is σ = 287406159964. Its totient is φ = 45060912000.

The previous prime is 122040002473. The next prime is 122040002501. The reversal of 122040002500 is 5200040221.

It can be written as a sum of positive squares in 10 ways, for example, as 121974165504 + 65836996 = 349248^2 + 8114^2 .

It is not an unprimeable number, because it can be changed into a prime (122040002501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1845039 + ... + 1910038.

Almost surely, 2^122040002500 is an apocalyptic number.

122040002500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122040002500 is an abundant number, since it is smaller than the sum of its proper divisors (165366157464).

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

122040002500 is a wasteful number, since it uses less digits than its factorization.

122040002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755114 (or 3755097 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 122040002500 its reverse (5200040221), we get a palindrome (127240042721).

The spelling of 122040002500 in words is "one hundred twenty-two billion, forty million, two thousand, five hundred".