22012222213 has 2 divisors, whose sum is σ = 22012222214. Its totient is φ = 22012222212.

The previous prime is 22012222159. The next prime is 22012222241. The reversal of 22012222213 is 31222221022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21861988164 + 150234049 = 147858^2 + 12257^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012222213 - 2⁹ = 22012221701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012262213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006111106 + 11006111107.

It is an arithmetic number, because the mean of its divisors is an integer number (11006111107).

Almost surely, 2^22012222213 is an apocalyptic number.

It is an amenable number.

22012222213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012222213 is an equidigital number, since it uses as much as digits as its factorization.

22012222213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22012222213 its reverse (31222221022), we get a palindrome (53234443235).

The spelling of 22012222213 in words is "twenty-two billion, twelve million, two hundred twenty-two thousand, two hundred thirteen".