22021131031 has 8 divisors (see below), whose sum is σ = 22398330240. Its totient is φ = 21644063928.

The previous prime is 22021131019. The next prime is 22021131049. The reversal of 22021131031 is 13013112022.

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

It is a cyclic number.

It is not a de Polignac number, because 22021131031 - 2⁷ = 22021130903 is a prime.

It is a super-2 number, since 2×22021131031² (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 = 22021130996 and 22021131014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338700 + ... + 398446.

It is an arithmetic number, because the mean of its divisors is an integer number (2799791280).

Almost surely, 2^22021131031 is an apocalyptic number.

22021131031 is a deficient number, since it is larger than the sum of its proper divisors (377199209).

22021131031 is an equidigital number, since it uses as much as digits as its factorization.

22021131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66053.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22021131031 its reverse (13013112022), we get a palindrome (35034243053).

The spelling of 22021131031 in words is "twenty-two billion, twenty-one million, one hundred thirty-one thousand, thirty-one".