122420522525 has 24 divisors (see below), whose sum is σ = 173538755904. Its totient is φ = 83920636800.

The previous prime is 122420522509. The next prime is 122420522561. The reversal of 122420522525 is 525225024221.

It is not a de Polignac number, because 122420522525 - 2⁴ = 122420522509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122420522491 and 122420522500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498890 + ... + 702660.

It is an arithmetic number, because the mean of its divisors is an integer number (7230781496).

Almost surely, 2^122420522525 is an apocalyptic number.

It is an amenable number.

122420522525 is a deficient number, since it is larger than the sum of its proper divisors (51118233379).

122420522525 is a wasteful number, since it uses less digits than its factorization.

122420522525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207221 (or 207216 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 122420522525 its reverse (525225024221), we get a palindrome (647645546746).

The spelling of 122420522525 in words is "one hundred twenty-two billion, four hundred twenty million, five hundred twenty-two thousand, five hundred twenty-five".