122125025221 has 16 divisors (see below), whose sum is σ = 129690339840. Its totient is φ = 114602526720.

The previous prime is 122125025213. The next prime is 122125025287. The reversal of 122125025221 is 122520521221.

It is a cyclic number.

It is not a de Polignac number, because 122125025221 - 2³ = 122125025213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122125025201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10506805 + ... + 10518421.

It is an arithmetic number, because the mean of its divisors is an integer number (8105646240).

Almost surely, 2^122125025221 is an apocalyptic number.

It is an amenable number.

122125025221 is a deficient number, since it is larger than the sum of its proper divisors (7565314619).

122125025221 is a wasteful number, since it uses less digits than its factorization.

122125025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13404.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 122125025221 its reverse (122520521221), we get a palindrome (244645546442).

The spelling of 122125025221 in words is "one hundred twenty-two billion, one hundred twenty-five million, twenty-five thousand, two hundred twenty-one".