12212455224 has 32 divisors (see below), whose sum is σ = 31031652240. Its totient is φ = 4004083200.

The previous prime is 12212455207. The next prime is 12212455247. The reversal of 12212455224 is 42255421221.

It is a junction number, because it is equal to n+sod(n) for n = 12212455191 and 12212455200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4169457 + ... + 4172384.

Almost surely, 2^12212455224 is an apocalyptic number.

It is an amenable number.

12212455224 is an abundant number, since it is smaller than the sum of its proper divisors (18819197016).

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

12212455224 is a wasteful number, since it uses less digits than its factorization.

12212455224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341911 (or 8341907 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

Adding to 12212455224 its reverse (42255421221), we get a palindrome (54467876445).

The spelling of 12212455224 in words is "twelve billion, two hundred twelve million, four hundred fifty-five thousand, two hundred twenty-four".