20122322231 has 16 divisors (see below), whose sum is σ = 22447152000. Its totient is φ = 17883511200.

The previous prime is 20122322197. The next prime is 20122322243. The reversal of 20122322231 is 13222322102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20122322231 - 2⁶ = 20122322167 is a prime.

It is a super-2 number, since 2×20122322231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122322251) 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, 31820 + ... + 203118.

It is an arithmetic number, because the mean of its divisors is an integer number (1402947000).

Almost surely, 2^20122322231 is an apocalyptic number.

20122322231 is a deficient number, since it is larger than the sum of its proper divisors (2324829769).

20122322231 is a wasteful number, since it uses less digits than its factorization.

20122322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171550.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20122322231 its reverse (13222322102), we get a palindrome (33344644333).

The spelling of 20122322231 in words is "twenty billion, one hundred twenty-two million, three hundred twenty-two thousand, two hundred thirty-one".