221900180888042 has 16 divisors (see below), whose sum is σ = 347322528268992. Its totient is φ = 106126018854240.

The previous prime is 221900180888039. The next prime is 221900180888047. The reversal of 221900180888042 is 240888081009122.

It is a happy number.

221900180888042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221900180888047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32336198 + ... + 38593134.

It is an arithmetic number, because the mean of its divisors is an integer number (21707658016812).

Almost surely, 2^{221900180888042} is an apocalyptic number.

221900180888042 is a deficient number, since it is larger than the sum of its proper divisors (125422347380950).

221900180888042 is a wasteful number, since it uses less digits than its factorization.

221900180888042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027933.

The product of its (nonzero) digits is 1179648, while the sum is 53.

The spelling of 221900180888042 in words is "two hundred twenty-one trillion, nine hundred billion, one hundred eighty million, eight hundred eighty-eight thousand, forty-two".