23022230021 has 24 divisors (see below), whose sum is σ = 27657125496. Its totient is φ = 19093656960.

The previous prime is 23022230009. The next prime is 23022230069. The reversal of 23022230021 is 12003222032.

It can be written as a sum of positive squares in 4 ways, for example, as 181953121 + 22840276900 = 13489^2 + 151130^2 .

It is not a de Polignac number, because 23022230021 - 2³⁴ = 5842360837 is a prime.

It is a super-3 number, since 3×23022230021³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23022230071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293075 + ... + 363231.

It is an arithmetic number, because the mean of its divisors is an integer number (1152380229).

Almost surely, 2^23022230021 is an apocalyptic number.

It is an amenable number.

23022230021 is a deficient number, since it is larger than the sum of its proper divisors (4634895475).

23022230021 is a wasteful number, since it uses less digits than its factorization.

23022230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70389 (or 70382 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23022230021 its reverse (12003222032), we get a palindrome (35025452053).

The spelling of 23022230021 in words is "twenty-three billion, twenty-two million, two hundred thirty thousand, twenty-one".