20222022222 has 32 divisors (see below), whose sum is σ = 45139368960. Its totient is φ = 6710442840.

The previous prime is 20222022203. The next prime is 20222022253. The reversal of 20222022222 is 22222022202.

20222022222 is a `hidden beast` number, since 202 + 220 + 22 + 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 = 20222022195 and 20222022204.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 827604 + ... + 851687.

It is an arithmetic number, because the mean of its divisors is an integer number (1410605280).

Almost surely, 2^20222022222 is an apocalyptic number.

20222022222 is an abundant number, since it is smaller than the sum of its proper divisors (24917346738).

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

20222022222 is a wasteful number, since it uses less digits than its factorization.

20222022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679525 (or 1679519 counting only the distinct ones).

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

Adding to 20222022222 its reverse (22222022202), we get a palindrome (42444044424).

The spelling of 20222022222 in words is "twenty billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-two".