20022688231 has 16 divisors (see below), whose sum is σ = 25011126784. Its totient is φ = 15605672544.

The previous prime is 20022688219. The next prime is 20022688237. The reversal of 20022688231 is 13288622002.

It is a happy number.

It is not a de Polignac number, because 20022688231 - 2¹¹ = 20022686183 is a prime.

It is a super-2 number, since 2×20022688231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022688237) 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, 1635915 + ... + 1648108.

It is an arithmetic number, because the mean of its divisors is an integer number (1563195424).

Almost surely, 2^20022688231 is an apocalyptic number.

20022688231 is a deficient number, since it is larger than the sum of its proper divisors (4988438553).

20022688231 is a wasteful number, since it uses less digits than its factorization.

20022688231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284110.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20022688231 in words is "twenty billion, twenty-two million, six hundred eighty-eight thousand, two hundred thirty-one".