122543120125 has 32 divisors (see below), whose sum is σ = 157926472704. Its totient is φ = 94836456000.

The previous prime is 122543120101. The next prime is 122543120137. The reversal of 122543120125 is 521021345221.

It is a happy number.

It is not a de Polignac number, because 122543120125 - 2²⁵ = 122509565693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122543120093 and 122543120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15600699 + ... + 15608551.

It is an arithmetic number, because the mean of its divisors is an integer number (4935202272).

Almost surely, 2^122543120125 is an apocalyptic number.

It is an amenable number.

122543120125 is a deficient number, since it is larger than the sum of its proper divisors (35383352579).

122543120125 is an equidigital number, since it uses as much as digits as its factorization.

122543120125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11926 (or 11916 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 122543120125 its reverse (521021345221), we get a palindrome (643564465346).

The spelling of 122543120125 in words is "one hundred twenty-two billion, five hundred forty-three million, one hundred twenty thousand, one hundred twenty-five".