22011232013 has 2 divisors, whose sum is σ = 22011232014. Its totient is φ = 22011232012.

The previous prime is 22011232007. The next prime is 22011232027. The reversal of 22011232013 is 31023211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21499477129 + 511754884 = 146627^2 + 22622^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011232013 - 2²² = 22007037709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22011231982 and 22011232000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22011232073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005616006 + 11005616007.

It is an arithmetic number, because the mean of its divisors is an integer number (11005616007).

Almost surely, 2^22011232013 is an apocalyptic number.

It is an amenable number.

22011232013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011232013 is an equidigital number, since it uses as much as digits as its factorization.

22011232013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22011232013 its reverse (31023211022), we get a palindrome (53034443035).

The spelling of 22011232013 in words is "twenty-two billion, eleven million, two hundred thirty-two thousand, thirteen".