22113011213 has 2 divisors, whose sum is σ = 22113011214. Its totient is φ = 22113011212.

The previous prime is 22113011209. The next prime is 22113011227. The reversal of 22113011213 is 31211031122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17020333444 + 5092677769 = 130462^2 + 71363^2 .

It is a cyclic number.

It is not a de Polignac number, because 22113011213 - 2² = 22113011209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22113011191 and 22113011200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22113011413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056505606 + 11056505607.

It is an arithmetic number, because the mean of its divisors is an integer number (11056505607).

Almost surely, 2^22113011213 is an apocalyptic number.

It is an amenable number.

22113011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113011213 is an equidigital number, since it uses as much as digits as its factorization.

22113011213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22113011213 its reverse (31211031122), we get a palindrome (53324042335).

The spelling of 22113011213 in words is "twenty-two billion, one hundred thirteen million, eleven thousand, two hundred thirteen".