121268872 has 8 divisors (see below), whose sum is σ = 227379150. Its totient is φ = 60634432.

The previous prime is 121268863. The next prime is 121268897. The reversal of 121268872 is 278862121.

It can be written as a sum of positive squares in only one way, i.e., 112232836 + 9036036 = 10594^2 + 3006^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×121268872² = 29412278632304768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7579297 + ... + 7579312.

Almost surely, 2^121268872 is an apocalyptic number.

It is an amenable number.

121268872 is a deficient number, since it is larger than the sum of its proper divisors (106110278).

121268872 is a wasteful number, since it uses less digits than its factorization.

121268872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15158615 (or 15158611 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 121268872 is about 11012.2146728076. The cubic root of 121268872 is about 494.9748271387.

The spelling of 121268872 in words is "one hundred twenty-one million, two hundred sixty-eight thousand, eight hundred seventy-two".