1224402412 has 18 divisors (see below), whose sum is σ = 2214060324. Its totient is φ = 592450920.

The previous prime is 1224402383. The next prime is 1224402419. The reversal of 1224402412 is 2142044221.

It is a super-2 number, since 2×1224402412² = 2998322533022835488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1224402419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155418 + ... + 163105.

Almost surely, 2^1224402412 is an apocalyptic number.

It is an amenable number.

1224402412 is a deficient number, since it is larger than the sum of its proper divisors (989657912).

1224402412 is a wasteful number, since it uses less digits than its factorization.

1224402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318589 (or 318556 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1224402412 is about 34991.4619871762. The cubic root of 1224402412 is about 1069.8134626928.

Adding to 1224402412 its reverse (2142044221), we get a palindrome (3366446633).

The spelling of 1224402412 in words is "one billion, two hundred twenty-four million, four hundred two thousand, four hundred twelve".