22322031021 has 24 divisors (see below), whose sum is σ = 33270512184. Its totient is φ = 14412387840.

The previous prime is 22322030981. The next prime is 22322031029. The reversal of 22322031021 is 12013022322.

It can be written as a sum of positive squares in 4 ways, for example, as 1293840900 + 21028190121 = 35970^2 + 145011^2 .

It is not a de Polignac number, because 22322031021 - 2¹⁸ = 22321768877 is a prime.

It is a super-3 number, since 3×22322031021³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22322030985 and 22322031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22322031029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170226 + ... + 271331.

It is an arithmetic number, because the mean of its divisors is an integer number (1386271341).

Almost surely, 2^22322031021 is an apocalyptic number.

It is an amenable number.

22322031021 is a deficient number, since it is larger than the sum of its proper divisors (10948481163).

22322031021 is a wasteful number, since it uses less digits than its factorization.

22322031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441741 (or 441738 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22322031021 its reverse (12013022322), we get a palindrome (34335053343).

The spelling of 22322031021 in words is "twenty-two billion, three hundred twenty-two million, thirty-one thousand, twenty-one".