121269924 has 18 divisors (see below), whose sum is σ = 306543510. Its totient is φ = 40423296.

The previous prime is 121269919. The next prime is 121269937. The reversal of 121269924 is 429962121.

It can be written as a sum of positive squares in only one way, i.e., 93896100 + 27373824 = 9690^2 + 5232^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3368609 = 121269924 / (1 + 2 + 1 + 2 + 6 + 9 + 9 + 2 + 4).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1684269 + ... + 1684340.

It is an arithmetic number, because the mean of its divisors is an integer number (17030195).

Almost surely, 2^121269924 is an apocalyptic number.

It is an amenable number.

121269924 is an abundant number, since it is smaller than the sum of its proper divisors (185273586).

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

121269924 is a wasteful number, since it uses less digits than its factorization.

121269924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368619 (or 3368614 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 121269924 is about 11012.2624378463. The cubic root of 121269924 is about 494.9762584267.

The spelling of 121269924 in words is "one hundred twenty-one million, two hundred sixty-nine thousand, nine hundred twenty-four".