12212312013 has 48 divisors (see below), whose sum is σ = 19409435136. Its totient is φ = 7337934720.

The previous prime is 12212311973. The next prime is 12212312017. The reversal of 12212312013 is 31021321221.

It is not a de Polignac number, because 12212312013 - 2¹² = 12212307917 is a prime.

It is a super-2 number, since 2×12212312013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212312017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6114331 + ... + 6116327.

It is an arithmetic number, because the mean of its divisors is an integer number (404363232).

Almost surely, 2^12212312013 is an apocalyptic number.

It is an amenable number.

12212312013 is a deficient number, since it is larger than the sum of its proper divisors (7197123123).

12212312013 is a wasteful number, since it uses less digits than its factorization.

12212312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2511 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12212312013 its reverse (31021321221), we get a palindrome (43233633234).

The spelling of 12212312013 in words is "twelve billion, two hundred twelve million, three hundred twelve thousand, thirteen".