221122220211102 has 64 divisors (see below), whose sum is σ = 539516674252800. Its totient is φ = 59009636216160.

The previous prime is 221122220211097. The next prime is 221122220211143. The reversal of 221122220211102 is 201112022221122.

221122220211102 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, 1951320202 + ... + 1951433517.

It is an arithmetic number, because the mean of its divisors is an integer number (8429948035200).

Almost surely, 2^{221122220211102} is an apocalyptic number.

221122220211102 is an abundant number, since it is smaller than the sum of its proper divisors (318394454041698).

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

221122220211102 is a wasteful number, since it uses less digits than its factorization.

221122220211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902753821.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221122220211102 its reverse (201112022221122), we get a palindrome (422234242432224).

The spelling of 221122220211102 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred eleven thousand, one hundred two".