222121201102200 has 72 divisors (see below), whose sum is σ = 745957033707600. Its totient is φ = 59232320293440.

The previous prime is 222121201102169. The next prime is 222121201102247. The reversal of 222121201102200 is 2201102121222.

It is a happy number.

222121201102200 is a `hidden beast` number, since 2 + 2 + 212 + 120 + 110 + 220 + 0 = 666.

222121201102200 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61700331840 + ... + 61700335439.

It is an arithmetic number, because the mean of its divisors is an integer number (10360514357050).

Almost surely, 2^{222121201102200} is an apocalyptic number.

222121201102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222121201102200 is an abundant number, since it is smaller than the sum of its proper divisors (523835832605400).

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

222121201102200 is a wasteful number, since it uses less digits than its factorization.

222121201102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123400667301 (or 123400667289 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222121201102200 its reverse (2201102121222), we get a palindrome (224322303223422).

The spelling of 222121201102200 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, one hundred two thousand, two hundred".