121269933815 has 16 divisors (see below), whose sum is σ = 147341939328. Its totient is φ = 95810136576.

The previous prime is 121269933793. The next prime is 121269933821. The reversal of 121269933815 is 518339962121.

It is a cyclic number.

It is not a de Polignac number, because 121269933815 - 2⁶ = 121269933751 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 230927 + ... + 543936.

It is an arithmetic number, because the mean of its divisors is an integer number (9208871208).

Almost surely, 2^121269933815 is an apocalyptic number.

121269933815 is a deficient number, since it is larger than the sum of its proper divisors (26072005513).

121269933815 is a wasteful number, since it uses less digits than its factorization.

121269933815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775258.

The product of its digits is 699840, while the sum is 50.

The spelling of 121269933815 in words is "one hundred twenty-one billion, two hundred sixty-nine million, nine hundred thirty-three thousand, eight hundred fifteen".