22002111209 has 16 divisors (see below), whose sum is σ = 23761127040. Its totient is φ = 20252695680.

The previous prime is 22002111143. The next prime is 22002111211. The reversal of 22002111209 is 90211120022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22002111209 - 2⁸ = 22002110953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002111809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13197794 + ... + 13199460.

It is an arithmetic number, because the mean of its divisors is an integer number (1485070440).

Almost surely, 2^22002111209 is an apocalyptic number.

It is an amenable number.

22002111209 is a deficient number, since it is larger than the sum of its proper divisors (1759015831).

22002111209 is a wasteful number, since it uses less digits than its factorization.

22002111209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 22002111209 in words is "twenty-two billion, two million, one hundred eleven thousand, two hundred nine".