22020231321 has 16 divisors (see below), whose sum is σ = 35588253120. Its totient is φ = 13345594560.

The previous prime is 22020231283. The next prime is 22020231361. The reversal of 22020231321 is 12313202022.

It is not a de Polignac number, because 22020231321 - 2²⁷ = 21886013593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020231294 and 22020231303.

It is not an unprimeable number, because it can be changed into a prime (22020231361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37070800 + ... + 37071393.

It is an arithmetic number, because the mean of its divisors is an integer number (2224265820).

Almost surely, 2^22020231321 is an apocalyptic number.

It is an amenable number.

22020231321 is a deficient number, since it is larger than the sum of its proper divisors (13568021799).

22020231321 is a wasteful number, since it uses less digits than its factorization.

22020231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74142213 (or 74142207 counting only the distinct ones).

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

Adding to 22020231321 its reverse (12313202022), we get a palindrome (34333433343).

The spelling of 22020231321 in words is "twenty-two billion, twenty million, two hundred thirty-one thousand, three hundred twenty-one".