20221100222 has 16 divisors (see below), whose sum is σ = 31845897360. Its totient is φ = 9616208448.

The previous prime is 20221100219. The next prime is 20221100239. The reversal of 20221100222 is 22200112202.

It is a junction number, because it is equal to n+sod(n) for n = 20221100197 and 20221100206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597903 + ... + 2605674.

It is an arithmetic number, because the mean of its divisors is an integer number (1990368585).

Almost surely, 2^20221100222 is an apocalyptic number.

20221100222 is a deficient number, since it is larger than the sum of its proper divisors (11624797138).

20221100222 is a wasteful number, since it uses less digits than its factorization.

20221100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203675.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20221100222 its reverse (22200112202), we get a palindrome (42421212424).

The spelling of 20221100222 in words is "twenty billion, two hundred twenty-one million, one hundred thousand, two hundred twenty-two".