121051521022025 has 96 divisors (see below), whose sum is σ = 173609375753088. Its totient is φ = 82925589196800.

The previous prime is 121051521022021. The next prime is 121051521022037. The reversal of 121051521022025 is 520220125150121.

It is not a de Polignac number, because 121051521022025 - 2² = 121051521022021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121051521022021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48216107 + ... + 50664543.

It is an arithmetic number, because the mean of its divisors is an integer number (1808430997428).

Almost surely, 2^{121051521022025} is an apocalyptic number.

It is an amenable number.

121051521022025 is a deficient number, since it is larger than the sum of its proper divisors (52557854731063).

121051521022025 is a wasteful number, since it uses less digits than its factorization.

121051521022025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448651 (or 2448646 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 121051521022025 its reverse (520220125150121), we get a palindrome (641271646172146).

The spelling of 121051521022025 in words is "one hundred twenty-one trillion, fifty-one billion, five hundred twenty-one million, twenty-two thousand, twenty-five".