121010255025 has 24 divisors (see below), whose sum is σ = 218258497824. Its totient is φ = 58671638400.

The previous prime is 121010255017. The next prime is 121010255063. The reversal of 121010255025 is 520552010121.

It is not a de Polignac number, because 121010255025 - 2³ = 121010255017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121010254986 and 121010255004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73338724 + ... + 73340373.

It is an arithmetic number, because the mean of its divisors is an integer number (9094104076).

Almost surely, 2^121010255025 is an apocalyptic number.

121010255025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121010255025 is a deficient number, since it is larger than the sum of its proper divisors (97248242799).

121010255025 is a wasteful number, since it uses less digits than its factorization.

121010255025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146679121 (or 146679116 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 121010255025 its reverse (520552010121), we get a palindrome (641562265146).

The spelling of 121010255025 in words is "one hundred twenty-one billion, ten million, two hundred fifty-five thousand, twenty-five".