202221222211100 has 36 divisors (see below), whose sum is σ = 447099675836184. Its totient is φ = 79362290978880.

The previous prime is 202221222211081. The next prime is 202221222211109. The reversal of 202221222211100 is 1112222122202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221222211109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19077468494 + ... + 19077479093.

It is an arithmetic number, because the mean of its divisors is an integer number (12419435439894).

Almost surely, 2^{202221222211100} is an apocalyptic number.

202221222211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221222211100 is an abundant number, since it is smaller than the sum of its proper divisors (244878453625084).

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

202221222211100 is a wasteful number, since it uses less digits than its factorization.

202221222211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38154947654 (or 38154947647 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202221222211100 its reverse (1112222122202), we get a palindrome (203333444333302).

The spelling of 202221222211100 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred".