222111221930 has 32 divisors (see below), whose sum is σ = 430605189504. Its totient is φ = 82000558656.

The previous prime is 222111221929. The next prime is 222111222013. The reversal of 222111221930 is 39122111222.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 222111221930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047347 + ... + 1241433.

It is an arithmetic number, because the mean of its divisors is an integer number (13456412172).

Almost surely, 2^222111221930 is an apocalyptic number.

222111221930 is a deficient number, since it is larger than the sum of its proper divisors (208493967574).

222111221930 is a wasteful number, since it uses less digits than its factorization.

222111221930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202910.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 222111221930 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, nine hundred thirty".