22013105749 has 2 divisors, whose sum is σ = 22013105750. Its totient is φ = 22013105748.

The previous prime is 22013105743. The next prime is 22013105759. The reversal of 22013105749 is 94750131022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12639380625 + 9373725124 = 112425^2 + 96818^2 .

It is a cyclic number.

It is not a de Polignac number, because 22013105749 - 2¹⁷ = 22012974677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22013105743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006552874 + 11006552875.

It is an arithmetic number, because the mean of its divisors is an integer number (11006552875).

Almost surely, 2^22013105749 is an apocalyptic number.

It is an amenable number.

22013105749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22013105749 is an equidigital number, since it uses as much as digits as its factorization.

22013105749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 22013105749 in words is "twenty-two billion, thirteen million, one hundred five thousand, seven hundred forty-nine".