122121025 has 12 divisors (see below), whose sum is σ = 163078972. Its totient is φ = 90181440.

The previous prime is 122121017. The next prime is 122121061. The reversal of 122121025 is 520121221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 23853456 + 98267569 = 4884^2 + 9913^2 .

It is not a de Polignac number, because 122121025 - 2³ = 122121017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187554 + ... + 188203.

Almost surely, 2^122121025 is an apocalyptic number.

It is an amenable number.

122121025 is a deficient number, since it is larger than the sum of its proper divisors (40957947).

122121025 is a wasteful number, since it uses less digits than its factorization.

122121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375780 (or 375775 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 122121025 is about 11050.8382035029. The cubic root of 122121025 is about 496.1315134809.

Adding to 122121025 its reverse (520121221), we get a palindrome (642242246).

The spelling of 122121025 in words is "one hundred twenty-two million, one hundred twenty-one thousand, twenty-five".