22221111002223 has 16 divisors (see below), whose sum is σ = 33863459183360. Its totient is φ = 12696758237376.

The previous prime is 22221111002117. The next prime is 22221111002227. The reversal of 22221111002223 is 32220011112222.

It is not a de Polignac number, because 22221111002223 - 2³³ = 22212521067631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221111002223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221111002227) 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, 42210433 + ... + 42733626.

It is an arithmetic number, because the mean of its divisors is an integer number (2116466198960).

Almost surely, 2^{22221111002223} is an apocalyptic number.

22221111002223 is a deficient number, since it is larger than the sum of its proper divisors (11642348181137).

22221111002223 is a wasteful number, since it uses less digits than its factorization.

22221111002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84956526.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22221111002223 its reverse (32220011112222), we get a palindrome (54441122114445).

The spelling of 22221111002223 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, two thousand, two hundred twenty-three".