121413224 has 8 divisors (see below), whose sum is σ = 227649810. Its totient is φ = 60706608.

The previous prime is 121413203. The next prime is 121413233. The reversal of 121413224 is 422314121.

It can be written as a sum of positive squares in only one way, i.e., 121396324 + 16900 = 11018^2 + 130^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 121413196 and 121413205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7588319 + ... + 7588334.

Almost surely, 2^121413224 is an apocalyptic number.

It is an amenable number.

121413224 is a deficient number, since it is larger than the sum of its proper divisors (106236586).

121413224 is a wasteful number, since it uses less digits than its factorization.

121413224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15176659 (or 15176655 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 121413224 is about 11018.7669001572. The cubic root of 121413224 is about 495.1711464785.

Adding to 121413224 its reverse (422314121), we get a palindrome (543727345).

The spelling of 121413224 in words is "one hundred twenty-one million, four hundred thirteen thousand, two hundred twenty-four".