121021233224 has 16 divisors (see below), whose sum is σ = 240262742700. Its totient is φ = 56951168512.

The previous prime is 121021233211. The next prime is 121021233247. The reversal of 121021233224 is 422332120121.

It can be written as a sum of positive squares in 2 ways, for example, as 118315360900 + 2705872324 = 343970^2 + 52018^2 .

It is a super-2 number, since 2×121021233224² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121021233224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444930869 + ... + 444931140.

Almost surely, 2^121021233224 is an apocalyptic number.

It is an amenable number.

121021233224 is a deficient number, since it is larger than the sum of its proper divisors (119241509476).

121021233224 is a wasteful number, since it uses less digits than its factorization.

121021233224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889862032 (or 889862028 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121021233224 its reverse (422332120121), we get a palindrome (543353353345).

The spelling of 121021233224 in words is "one hundred twenty-one billion, twenty-one million, two hundred thirty-three thousand, two hundred twenty-four".