22100012213 has 4 divisors (see below), whose sum is σ = 22240776780. Its totient is φ = 21959247648.

The previous prime is 22100012197. The next prime is 22100012287. The reversal of 22100012213 is 31221000122.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5148493009 + 16951519204 = 71753^2 + 130198^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100012213 - 2⁴ = 22100012197 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 (22100012293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70382048 + ... + 70382361.

It is an arithmetic number, because the mean of its divisors is an integer number (5560194195).

Almost surely, 2^22100012213 is an apocalyptic number.

It is an amenable number.

22100012213 is a deficient number, since it is larger than the sum of its proper divisors (140764567).

22100012213 is a wasteful number, since it uses less digits than its factorization.

22100012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140764566.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22100012213 its reverse (31221000122), we get a palindrome (53321012335).

The spelling of 22100012213 in words is "twenty-two billion, one hundred million, twelve thousand, two hundred thirteen".