20122230031231 has 16 divisors (see below), whose sum is σ = 20323711497600. Its totient is φ = 19921598107488.

The previous prime is 20122230031219. The next prime is 20122230031259. The reversal of 20122230031231 is 13213003222102.

It is a cyclic number.

It is not a de Polignac number, because 20122230031231 - 2¹³ = 20122230023039 is a prime.

It is a super-2 number, since 2×20122230031231² (a number of 27 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 (20122230031201) 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, 144193216 + ... + 144332698.

It is an arithmetic number, because the mean of its divisors is an integer number (1270231968600).

Almost surely, 2^{20122230031231} is an apocalyptic number.

20122230031231 is a deficient number, since it is larger than the sum of its proper divisors (201481466369).

20122230031231 is a wasteful number, since it uses less digits than its factorization.

20122230031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142518.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20122230031231 its reverse (13213003222102), we get a palindrome (33335233253333).

The spelling of 20122230031231 in words is "twenty trillion, one hundred twenty-two billion, two hundred thirty million, thirty-one thousand, two hundred thirty-one".