1224205212 has 12 divisors (see below), whose sum is σ = 2856478856. Its totient is φ = 408068400.

The previous prime is 1224205181. The next prime is 1224205223. The reversal of 1224205212 is 2125024221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 51008539 + ... + 51008562.

Almost surely, 2^1224205212 is an apocalyptic number.

1224205212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224205212 is an abundant number, since it is smaller than the sum of its proper divisors (1632273644).

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

1224205212 is a wasteful number, since it uses less digits than its factorization.

1224205212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102017108 (or 102017106 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1224205212 is about 34988.6440434607. The cubic root of 1224205212 is about 1069.7560255463.

Adding to 1224205212 its reverse (2125024221), we get a palindrome (3349229433).

The spelling of 1224205212 in words is "one billion, two hundred twenty-four million, two hundred five thousand, two hundred twelve".