2231220021113 has 4 divisors (see below), whose sum is σ = 2232643902720. Its totient is φ = 2229796139508.

The previous prime is 2231220021103. The next prime is 2231220021157. The reversal of 2231220021113 is 3111200221322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2231220021113 - 2²² = 2231215826809 is a prime.

It is a super-3 number, since 3×2231220021113³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231220021103) 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, 711938453 + ... + 711941586.

It is an arithmetic number, because the mean of its divisors is an integer number (558160975680).

Almost surely, 2^{2231220021113} is an apocalyptic number.

It is an amenable number.

2231220021113 is a deficient number, since it is larger than the sum of its proper divisors (1423881607).

2231220021113 is a wasteful number, since it uses less digits than its factorization.

2231220021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423881606.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2231220021113 its reverse (3111200221322), we get a palindrome (5342420242435).

The spelling of 2231220021113 in words is "two trillion, two hundred thirty-one billion, two hundred twenty million, twenty-one thousand, one hundred thirteen".