22001221102200 has 96 divisors (see below), whose sum is σ = 72215772827760. Its totient is φ = 5521875097600.

The previous prime is 22001221102151. The next prime is 22001221102247. The reversal of 22001221102200 is 220112210022.

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 22001221102200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1078481031 + ... + 1078501430.

Almost surely, 2^{22001221102200} is an apocalyptic number.

22001221102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001221102200 is an abundant number, since it is smaller than the sum of its proper divisors (50214551725560).

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

22001221102200 is a wasteful number, since it uses less digits than its factorization.

22001221102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156982497 (or 2156982488 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22001221102200 its reverse (220112210022), we get a palindrome (22221333312222).

The spelling of 22001221102200 in words is "twenty-two trillion, one billion, two hundred twenty-one million, one hundred two thousand, two hundred".