121992625149 has 16 divisors (see below), whose sum is σ = 167063716800. Its totient is φ = 79125258240.

The previous prime is 121992625127. The next prime is 121992625171. The reversal of 121992625149 is 941526299121.

It is an interprime number because it is at equal distance from previous prime (121992625127) and next prime (121992625171).

It is not a de Polignac number, because 121992625149 - 2⁸ = 121992624893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121992623149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2533702 + ... + 2581400.

It is an arithmetic number, because the mean of its divisors is an integer number (10441482300).

Almost surely, 2^121992625149 is an apocalyptic number.

It is an amenable number.

121992625149 is a deficient number, since it is larger than the sum of its proper divisors (45071091651).

121992625149 is a wasteful number, since it uses less digits than its factorization.

121992625149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70780.

The product of its digits is 699840, while the sum is 51.

The spelling of 121992625149 in words is "one hundred twenty-one billion, nine hundred ninety-two million, six hundred twenty-five thousand, one hundred forty-nine".