122109025 has 6 divisors (see below), whose sum is σ = 151415222. Its totient is φ = 97687200.

The previous prime is 122109023. The next prime is 122109037. The reversal of 122109025 is 520901221.

It can be written as a sum of positive squares in 3 ways, for example, as 22268961 + 99840064 = 4719^2 + 9992^2 .

It is not a de Polignac number, because 122109025 - 2¹ = 122109023 is a prime.

It is a super-2 number, since 2×122109025² = 29821227972901250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122108987 and 122109005.

It is not an unprimeable number, because it can be changed into a prime (122109023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2442156 + ... + 2442205.

Almost surely, 2^122109025 is an apocalyptic number.

It is an amenable number.

122109025 is a deficient number, since it is larger than the sum of its proper divisors (29306197).

122109025 is an equidigital number, since it uses as much as digits as its factorization.

122109025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884371 (or 4884366 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 122109025 is about 11050.2952449245. The cubic root of 122109025 is about 496.1152624623.

The spelling of 122109025 in words is "one hundred twenty-two million, one hundred nine thousand, twenty-five".