20023122211 has 2 divisors, whose sum is σ = 20023122212. Its totient is φ = 20023122210.

The previous prime is 20023122199. The next prime is 20023122233. The reversal of 20023122211 is 11222132002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20023122211 - 2⁵ = 20023122179 is a prime.

It is a super-3 number, since 3×20023122211³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20023120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011561105 + 10011561106.

It is an arithmetic number, because the mean of its divisors is an integer number (10011561106).

Almost surely, 2^20023122211 is an apocalyptic number.

20023122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023122211 is an equidigital number, since it uses as much as digits as its factorization.

20023122211 is an evil number, because the sum of its binary digits is even.

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

Adding to 20023122211 its reverse (11222132002), we get a palindrome (31245254213).

It can be divided in two parts, 2002 and 3122211, that added together give a palindrome (3124213).

The spelling of 20023122211 in words is "twenty billion, twenty-three million, one hundred twenty-two thousand, two hundred eleven".