22021102200 has 48 divisors (see below), whose sum is σ = 68265418680. Its totient is φ = 5872293760.

The previous prime is 22021102193. The next prime is 22021102211. The reversal of 22021102200 is 220112022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18350319 + ... + 18351518.

Almost surely, 2^22021102200 is an apocalyptic number.

22021102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021102200 is an abundant number, since it is smaller than the sum of its proper divisors (46244316480).

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

22021102200 is a wasteful number, since it uses less digits than its factorization.

22021102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36701856 (or 36701847 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22021102200 its reverse (220112022), we get a palindrome (22241214222).

The spelling of 22021102200 in words is "twenty-two billion, twenty-one million, one hundred two thousand, two hundred".