121167173025 has 60 divisors (see below), whose sum is σ = 224534079792. Its totient is φ = 64596411360.

The previous prime is 121167173009. The next prime is 121167173053. The reversal of 121167173025 is 520371761121.

It is not a de Polignac number, because 121167173025 - 2⁴ = 121167173009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5665402 + ... + 5686748.

Almost surely, 2^121167173025 is an apocalyptic number.

121167173025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121167173025 is a deficient number, since it is larger than the sum of its proper divisors (103366906767).

121167173025 is a wasteful number, since it uses less digits than its factorization.

121167173025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24172 (or 24158 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 121167173025 in words is "one hundred twenty-one billion, one hundred sixty-seven million, one hundred seventy-three thousand, twenty-five".