121912336 has 160 divisors (see below), whose sum is σ = 312424448. Its totient is φ = 44789760.

The previous prime is 121912333. The next prime is 121912363. The reversal of 121912336 is 633219121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (121912333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1669996 + ... + 1670068.

Almost surely, 2^121912336 is an apocalyptic number.

121912336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121912336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156212224).

121912336 is an abundant number, since it is smaller than the sum of its proper divisors (190512112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121912336 is a wasteful number, since it uses less digits than its factorization.

121912336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 163 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 121912336 is about 11041.3919412364. The cubic root of 121912336 is about 495.8487442016.

The spelling of 121912336 in words is "one hundred twenty-one million, nine hundred twelve thousand, three hundred thirty-six".