222102210021200 has 60 divisors (see below), whose sum is σ = 564988827803580. Its totient is φ = 83614949652480.

The previous prime is 222102210021199. The next prime is 222102210021233. The reversal of 222102210021200 is 2120012201222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1690655263504 + 220411554757696 = 1300252^2 + 14846264^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

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, 16331038055 + ... + 16331051654.

It is an arithmetic number, because the mean of its divisors is an integer number (9416480463393).

Almost surely, 2^{222102210021200} is an apocalyptic number.

222102210021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102210021200 is an abundant number, since it is smaller than the sum of its proper divisors (342886617782380).

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

222102210021200 is a wasteful number, since it uses less digits than its factorization.

222102210021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32662089744 (or 32662089733 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222102210021200 its reverse (2120012201222), we get a palindrome (224222222222422).

The spelling of 222102210021200 in words is "two hundred twenty-two trillion, one hundred two billion, two hundred ten million, twenty-one thousand, two hundred".