22133213549 has 2 divisors, whose sum is σ = 22133213550. Its totient is φ = 22133213548.

The previous prime is 22133213533. The next prime is 22133213573. The reversal of 22133213549 is 94531233122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15383440900 + 6749772649 = 124030^2 + 82157^2 .

It is a cyclic number.

It is not a de Polignac number, because 22133213549 - 2⁴ = 22133213533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22133213579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066606774 + 11066606775.

It is an arithmetic number, because the mean of its divisors is an integer number (11066606775).

Almost surely, 2^22133213549 is an apocalyptic number.

It is an amenable number.

22133213549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22133213549 is an equidigital number, since it uses as much as digits as its factorization.

22133213549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The spelling of 22133213549 in words is "twenty-two billion, one hundred thirty-three million, two hundred thirteen thousand, five hundred forty-nine".