12220334412 has 48 divisors (see below), whose sum is σ = 33499103232. Its totient is φ = 3418274880.

The previous prime is 12220334407. The next prime is 12220334419. The reversal of 12220334412 is 21443302221.

It is a happy number.

It is a super-2 number, since 2×12220334412² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12220334419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3558988 + ... + 3562419.

It is an arithmetic number, because the mean of its divisors is an integer number (697897984).

Almost surely, 2^12220334412 is an apocalyptic number.

12220334412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220334412 is an abundant number, since it is smaller than the sum of its proper divisors (21278768820).

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

12220334412 is a wasteful number, since it uses less digits than its factorization.

12220334412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121438 (or 7121436 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12220334412 its reverse (21443302221), we get a palindrome (33663636633).

The spelling of 12220334412 in words is "twelve billion, two hundred twenty million, three hundred thirty-four thousand, four hundred twelve".