121272868 has 12 divisors (see below), whose sum is σ = 219073792. Its totient is φ = 58680360.

The previous prime is 121272863. The next prime is 121272869. The reversal of 121272868 is 868272121.

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 not an unprimeable number, because it can be changed into a prime (121272863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488880 + ... + 489127.

Almost surely, 2^121272868 is an apocalyptic number.

It is an amenable number.

121272868 is a deficient number, since it is larger than the sum of its proper divisors (97800924).

121272868 is a wasteful number, since it uses less digits than its factorization.

121272868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978042 (or 978040 counting only the distinct ones).

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

The square root of 121272868 is about 11012.3961062069. The cubic root of 121272868 is about 494.9802638120.

The spelling of 121272868 in words is "one hundred twenty-one million, two hundred seventy-two thousand, eight hundred sixty-eight".