12420264216 has 16 divisors (see below), whose sum is σ = 31050660600. Its totient is φ = 4140088064.

The previous prime is 12420264211. The next prime is 12420264221. The reversal of 12420264216 is 61246202421.

It is an interprime number because it is at equal distance from previous prime (12420264211) and next prime (12420264221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420264211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258755481 + ... + 258755528.

Almost surely, 2^12420264216 is an apocalyptic number.

It is an amenable number.

12420264216 is an abundant number, since it is smaller than the sum of its proper divisors (18630396384).

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

12420264216 is a wasteful number, since it uses less digits than its factorization.

12420264216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517511018 (or 517511014 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12420264216 its reverse (61246202421), we get a palindrome (73666466637).

The spelling of 12420264216 in words is "twelve billion, four hundred twenty million, two hundred sixty-four thousand, two hundred sixteen".