22046822221 has 16 divisors (see below), whose sum is σ = 23112633600. Its totient is φ = 21001780800.

The previous prime is 22046822207. The next prime is 22046822263. The reversal of 22046822221 is 12222864022.

It is a cyclic number.

It is not a de Polignac number, because 22046822221 - 2²⁵ = 22013267789 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 (22046822821) 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, 4260966 + ... + 4266136.

It is an arithmetic number, because the mean of its divisors is an integer number (1444539600).

Almost surely, 2^22046822221 is an apocalyptic number.

It is an amenable number.

22046822221 is a deficient number, since it is larger than the sum of its proper divisors (1065811379).

22046822221 is a wasteful number, since it uses less digits than its factorization.

22046822221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140.

The product of its (nonzero) digits is 12288, while the sum is 31.

The spelling of 22046822221 in words is "twenty-two billion, forty-six million, eight hundred twenty-two thousand, two hundred twenty-one".