22220140549 has 2 divisors, whose sum is σ = 22220140550. Its totient is φ = 22220140548.

The previous prime is 22220140529. The next prime is 22220140567. The reversal of 22220140549 is 94504102222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15722652100 + 6497488449 = 125390^2 + 80607^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220140549 - 2⁷ = 22220140421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22220140549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220140519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110070274 + 11110070275.

It is an arithmetic number, because the mean of its divisors is an integer number (11110070275).

Almost surely, 2^22220140549 is an apocalyptic number.

It is an amenable number.

22220140549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220140549 is an equidigital number, since it uses as much as digits as its factorization.

22220140549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 22220140549 in words is "twenty-two billion, two hundred twenty million, one hundred forty thousand, five hundred forty-nine".