22041031021 has 4 divisors (see below), whose sum is σ = 22077828000. Its totient is φ = 22004234044.

The previous prime is 22041031013. The next prime is 22041031049. The reversal of 22041031021 is 12013014022.

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 22041031021 - 2³ = 22041031013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22041030986 and 22041031004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22041031121) 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, 18397591 + ... + 18398788.

It is an arithmetic number, because the mean of its divisors is an integer number (5519457000).

Almost surely, 2^22041031021 is an apocalyptic number.

It is an amenable number.

22041031021 is a deficient number, since it is larger than the sum of its proper divisors (36796979).

22041031021 is an equidigital number, since it uses as much as digits as its factorization.

22041031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36796978.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22041031021 its reverse (12013014022), we get a palindrome (34054045043).

The spelling of 22041031021 in words is "twenty-two billion, forty-one million, thirty-one thousand, twenty-one".