22103011021 has 32 divisors (see below), whose sum is σ = 27591556608. Its totient is φ = 17240186880.

The previous prime is 22103011019. The next prime is 22103011027. The reversal of 22103011021 is 12011030122.

It is not a de Polignac number, because 22103011021 - 2¹ = 22103011019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22103010992 and 22103011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103011027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2316741 + ... + 2326261.

It is an arithmetic number, because the mean of its divisors is an integer number (862236144).

Almost surely, 2^22103011021 is an apocalyptic number.

It is an amenable number.

22103011021 is a deficient number, since it is larger than the sum of its proper divisors (5488545587).

22103011021 is a wasteful number, since it uses less digits than its factorization.

22103011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9901.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22103011021 its reverse (12011030122), we get a palindrome (34114041143).

The spelling of 22103011021 in words is "twenty-two billion, one hundred three million, eleven thousand, twenty-one".