12223121312013 has 16 divisors (see below), whose sum is σ = 16365411570816. Its totient is φ = 8114790504960.

The previous prime is 12223121311979. The next prime is 12223121312021. The reversal of 12223121312013 is 31021312132221.

It is not a de Polignac number, because 12223121312013 - 2³⁴ = 12205941442829 is a prime.

It is a super-2 number, since 2×12223121312013² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223121312513) 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, 53660920 + ... + 53888222.

It is an arithmetic number, because the mean of its divisors is an integer number (1022838223176).

Almost surely, 2^{12223121312013} is an apocalyptic number.

It is an amenable number.

12223121312013 is a deficient number, since it is larger than the sum of its proper divisors (4142290258803).

12223121312013 is a wasteful number, since it uses less digits than its factorization.

12223121312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301924.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12223121312013 its reverse (31021312132221), we get a palindrome (43244433444234).

The spelling of 12223121312013 in words is "twelve trillion, two hundred twenty-three billion, one hundred twenty-one million, three hundred twelve thousand, thirteen".