12021322593 has 16 divisors (see below), whose sum is σ = 18329656320. Its totient is φ = 6865033296.

The previous prime is 12021322561. The next prime is 12021322597. The reversal of 12021322593 is 39522312021.

It is not a de Polignac number, because 12021322593 - 2⁵ = 12021322561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12021322593.

It is not an unprimeable number, because it can be changed into a prime (12021322597) 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, 144363 + ... + 211856.

It is an arithmetic number, because the mean of its divisors is an integer number (1145603520).

Almost surely, 2^12021322593 is an apocalyptic number.

It is an amenable number.

12021322593 is a deficient number, since it is larger than the sum of its proper divisors (6308333727).

12021322593 is a wasteful number, since it uses less digits than its factorization.

12021322593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357836.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 12021322593 in words is "twelve billion, twenty-one million, three hundred twenty-two thousand, five hundred ninety-three".