20221222200 has 96 divisors (see below), whose sum is σ = 63261092400. Its totient is φ = 5342837760.

The previous prime is 20221222199. The next prime is 20221222213. The reversal of 20221222200 is 222212202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20221222200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89197 + ... + 219996.

Almost surely, 2^20221222200 is an apocalyptic number.

20221222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221222200 is an abundant number, since it is smaller than the sum of its proper divisors (43039870200).

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

20221222200 is a wasteful number, since it uses less digits than its factorization.

20221222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309321 (or 309312 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20221222200 its reverse (222212202), we get a palindrome (20443434402).

The spelling of 20221222200 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred".