222013123291 has 4 divisors (see below), whose sum is σ = 222014766712. Its totient is φ = 222011479872.

The previous prime is 222013123273. The next prime is 222013123331. The reversal of 222013123291 is 192321310222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222013123291 - 2¹³ = 222013115099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222013123091) 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, 598941 + ... + 895966.

It is an arithmetic number, because the mean of its divisors is an integer number (55503691678).

Almost surely, 2^222013123291 is an apocalyptic number.

222013123291 is a deficient number, since it is larger than the sum of its proper divisors (1643421).

222013123291 is a wasteful number, since it uses less digits than its factorization.

222013123291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643420.

The product of its (nonzero) digits is 2592, while the sum is 28.

It can be divided in two parts, 2220131 and 23291, that added together give a palindrome (2243422).

The spelling of 222013123291 in words is "two hundred twenty-two billion, thirteen million, one hundred twenty-three thousand, two hundred ninety-one".