20222193900 has 36 divisors (see below), whose sum is σ = 58509548552. Its totient is φ = 5392584960.

The previous prime is 20222193869. The next prime is 20222193907. The reversal of 20222193900 is 939122202.

It is a happy number.

It is a super-2 number, since 2×20222193900² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20222193907) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 33703357 + ... + 33703956.

Almost surely, 2^20222193900 is an apocalyptic number.

20222193900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222193900 is an abundant number, since it is smaller than the sum of its proper divisors (38287354652).

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

20222193900 is a wasteful number, since it uses less digits than its factorization.

20222193900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67407330 (or 67407323 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 20222193900 in words is "twenty billion, two hundred twenty-two million, one hundred ninety-three thousand, nine hundred".