22212100002209 has 16 divisors (see below), whose sum is σ = 25354740534480. Its totient is φ = 19276882544640.

The previous prime is 22212100002203. The next prime is 22212100002271. The reversal of 22212100002209 is 90220000121222.

It can be written as a sum of positive squares in 8 ways, for example, as 124948110400 + 22087151891809 = 353480^2 + 4699697^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212100002209 - 2¹² = 22212099998113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212100002203) 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, 53196524 + ... + 53612445.

It is an arithmetic number, because the mean of its divisors is an integer number (1584671283405).

Almost surely, 2^{22212100002209} is an apocalyptic number.

It is an amenable number.

22212100002209 is a deficient number, since it is larger than the sum of its proper divisors (3142640532271).

22212100002209 is a wasteful number, since it uses less digits than its factorization.

22212100002209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106809940.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22212100002209 in words is "twenty-two trillion, two hundred twelve billion, one hundred million, two thousand, two hundred nine".