12420264215 has 8 divisors (see below), whose sum is σ = 14968285488. Its totient is φ = 9893565760.

The previous prime is 12420264211. The next prime is 12420264221. The reversal of 12420264215 is 51246202421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12420264215 - 2² = 12420264211 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 5329421 + ... + 5331750.

It is an arithmetic number, because the mean of its divisors is an integer number (1871035686).

Almost surely, 2^12420264215 is an apocalyptic number.

12420264215 is a deficient number, since it is larger than the sum of its proper divisors (2548021273).

12420264215 is a wasteful number, since it uses less digits than its factorization.

12420264215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661409.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 12420264215 its reverse (51246202421), we get a palindrome (63666466636).

The spelling of 12420264215 in words is "twelve billion, four hundred twenty million, two hundred sixty-four thousand, two hundred fifteen".