20231122210 has 16 divisors (see below), whose sum is σ = 39217252536. Its totient is φ = 7469952768.

The previous prime is 20231122199. The next prime is 20231122213. The reversal of 20231122210 is 1222113202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18097513729 + 2133608481 = 134527^2 + 46191^2 .

It is not an unprimeable number, because it can be changed into a prime (20231122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77811879 + ... + 77812138.

Almost surely, 2^20231122210 is an apocalyptic number.

20231122210 is a deficient number, since it is larger than the sum of its proper divisors (18986130326).

20231122210 is a wasteful number, since it uses less digits than its factorization.

20231122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155624037.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20231122210 its reverse (1222113202), we get a palindrome (21453235412).

The spelling of 20231122210 in words is "twenty billion, two hundred thirty-one million, one hundred twenty-two thousand, two hundred ten".