20122211023 has 4 divisors (see below), whose sum is σ = 20157575760. Its totient is φ = 20086846288.

The previous prime is 20122211009. The next prime is 20122211059. The reversal of 20122211023 is 32011222102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32011222102 = 2 ⋅16005611051.

It is a cyclic number.

It is not a de Polignac number, because 20122211023 - 2²⁵ = 20088656591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122210988 and 20122211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122211623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17681515 + ... + 17682652.

It is an arithmetic number, because the mean of its divisors is an integer number (5039393940).

Almost surely, 2^20122211023 is an apocalyptic number.

20122211023 is a deficient number, since it is larger than the sum of its proper divisors (35364737).

20122211023 is an equidigital number, since it uses as much as digits as its factorization.

20122211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35364736.

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

Adding to 20122211023 its reverse (32011222102), we get a palindrome (52133433125).

The spelling of 20122211023 in words is "twenty billion, one hundred twenty-two million, two hundred eleven thousand, twenty-three".