23022021222 has 24 divisors (see below), whose sum is σ = 50187071064. Its totient is φ = 7626926304.

The previous prime is 23022021157. The next prime is 23022021223. The reversal of 23022021222 is 22212022032.

23022021222 is a `hidden beast` number, since 230 + 220 + 212 + 2 + 2 = 666.

It is a super-2 number, since 2×23022021222² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23022021195 and 23022021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23022021223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3920383 + ... + 3926250.

It is an arithmetic number, because the mean of its divisors is an integer number (2091127961).

Almost surely, 2^23022021222 is an apocalyptic number.

23022021222 is an abundant number, since it is smaller than the sum of its proper divisors (27165049842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23022021222 is a wasteful number, since it uses less digits than its factorization.

23022021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846804 (or 7846801 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23022021222 its reverse (22212022032), we get a palindrome (45234043254).

The spelling of 23022021222 in words is "twenty-three billion, twenty-two million, twenty-one thousand, two hundred twenty-two".