12427982220 has 48 divisors (see below), whose sum is σ = 34862059008. Its totient is φ = 3308061120.

The previous prime is 12427982167. The next prime is 12427982221. The reversal of 12427982220 is 2228972421.

It is a super-2 number, since 2×12427982220² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12427982221) 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, 156516 + ... + 222155.

It is an arithmetic number, because the mean of its divisors is an integer number (726292896).

Almost surely, 2^12427982220 is an apocalyptic number.

12427982220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12427982220 is an abundant number, since it is smaller than the sum of its proper divisors (22434076788).

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

12427982220 is a wasteful number, since it uses less digits than its factorization.

12427982220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379230 (or 379228 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 12427982220 in words is "twelve billion, four hundred twenty-seven million, nine hundred eighty-two thousand, two hundred twenty".