22220111990 has 16 divisors (see below), whose sum is σ = 39997901952. Its totient is φ = 8887666944.

The previous prime is 22220111989. The next prime is 22220112007. The reversal of 22220111990 is 9911102222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417467 + ... + 467673.

It is an arithmetic number, because the mean of its divisors is an integer number (2499868872).

Almost surely, 2^22220111990 is an apocalyptic number.

22220111990 is a deficient number, since it is larger than the sum of its proper divisors (17777789962).

22220111990 is a wasteful number, since it uses less digits than its factorization.

22220111990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94471.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 22220111990 in words is "twenty-two billion, two hundred twenty million, one hundred eleven thousand, nine hundred ninety".