121522025 has 12 divisors (see below), whose sum is σ = 153894912. Its totient is φ = 95148240.

The previous prime is 121522021. The next prime is 121522033. The reversal of 121522025 is 520225121.

It is a happy number.

It is not a de Polignac number, because 121522025 - 2² = 121522021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121521988 and 121522006.

It is not an unprimeable number, because it can be changed into a prime (121522021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50537 + ... + 52886.

It is an arithmetic number, because the mean of its divisors is an integer number (12824576).

Almost surely, 2^121522025 is an apocalyptic number.

It is an amenable number.

121522025 is a deficient number, since it is larger than the sum of its proper divisors (32372887).

121522025 is a wasteful number, since it uses less digits than its factorization.

121522025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103480 (or 103475 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 121522025 is about 11023.7028715400. The cubic root of 121522025 is about 495.3190134880.

Adding to 121522025 its reverse (520225121), we get a palindrome (641747146).

The spelling of 121522025 in words is "one hundred twenty-one million, five hundred twenty-two thousand, twenty-five".