222100200222222 has 64 divisors (see below), whose sum is σ = 516272253327360. Its totient is φ = 62380411323744.

The previous prime is 222100200222221. The next prime is 222100200222247. The reversal of 222100200222222 is 222222002001222.

It is a super-2 number, since 2×222100200222222² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100200222221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127203373 + ... + 128937575.

It is an arithmetic number, because the mean of its divisors is an integer number (8066753958240).

Almost surely, 2^{222100200222222} is an apocalyptic number.

222100200222222 is an abundant number, since it is smaller than the sum of its proper divisors (294172053105138).

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

222100200222222 is a wasteful number, since it uses less digits than its factorization.

222100200222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785957.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 222100200222222 its reverse (222222002001222), we get a palindrome (444322202223444).

The spelling of 222100200222222 in words is "two hundred twenty-two trillion, one hundred billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-two".