22222020222 has 32 divisors (see below), whose sum is σ = 50975247360. Its totient is φ = 7168393080.

The previous prime is 22222020221. The next prime is 22222020229. The reversal of 22222020222 is 22202022222.

22222020222 is a `hidden beast` number, since 222 + 220 + 2 + 0 + 222 = 666.

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 = 22222020195 and 22222020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222020221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6635728 + ... + 6639075.

It is an arithmetic number, because the mean of its divisors is an integer number (1592976480).

Almost surely, 2^22222020222 is an apocalyptic number.

22222020222 is an abundant number, since it is smaller than the sum of its proper divisors (28753227138).

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

22222020222 is a wasteful number, since it uses less digits than its factorization.

22222020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13274845 (or 13274839 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22222020222 its reverse (22202022222), we get a palindrome (44424042444).

It can be divided in two parts, 22 and 222020222, that multiplied together give a palindrome (4884444884).

The spelling of 22222020222 in words is "twenty-two billion, two hundred twenty-two million, twenty thousand, two hundred twenty-two".