22220000191 has 4 divisors (see below), whose sum is σ = 22221804384. Its totient is φ = 22218196000.

The previous prime is 22220000183. The next prime is 22220000203. The reversal of 22220000191 is 19100002222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22220000191 - 2³ = 22220000183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220000591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883495 + ... + 908296.

It is an arithmetic number, because the mean of its divisors is an integer number (5555451096).

Almost surely, 2^22220000191 is an apocalyptic number.

22220000191 is a deficient number, since it is larger than the sum of its proper divisors (1804193).

22220000191 is a wasteful number, since it uses less digits than its factorization.

22220000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804192.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 22220000191 in words is "twenty-two billion, two hundred twenty million, one hundred ninety-one", and thus it is an aban number.