221101222200222 has 64 divisors (see below), whose sum is σ = 544254182728704. Its totient is φ = 58311872352000.

The previous prime is 221101222200179. The next prime is 221101222200247. The reversal of 221101222200222 is 222002222101122.

221101222200222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59204218 + ... + 62827874.

It is an arithmetic number, because the mean of its divisors is an integer number (8503971605136).

Almost surely, 2^{221101222200222} is an apocalyptic number.

221101222200222 is an abundant number, since it is smaller than the sum of its proper divisors (323152960528482).

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

221101222200222 is a wasteful number, since it uses less digits than its factorization.

221101222200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735433.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221101222200222 its reverse (222002222101122), we get a palindrome (443103444301344).

The spelling of 221101222200222 in words is "two hundred twenty-one trillion, one hundred one billion, two hundred twenty-two million, two hundred thousand, two hundred twenty-two".