22021230031 has 8 divisors (see below), whose sum is σ = 22511621664. Its totient is φ = 21535012320.

The previous prime is 22021230019. The next prime is 22021230053. The reversal of 22021230031 is 13003212022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22021230031 - 2⁷ = 22021229903 is a prime.

It is a super-2 number, since 2×22021230031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021229987 and 22021230014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021230001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032811 + ... + 1053916.

It is an arithmetic number, because the mean of its divisors is an integer number (2813952708).

Almost surely, 2^22021230031 is an apocalyptic number.

22021230031 is a deficient number, since it is larger than the sum of its proper divisors (490391633).

22021230031 is a wasteful number, since it uses less digits than its factorization.

22021230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086961.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22021230031 its reverse (13003212022), we get a palindrome (35024442053).

The spelling of 22021230031 in words is "twenty-two billion, twenty-one million, two hundred thirty thousand, thirty-one".