22120000277 has 2 divisors, whose sum is σ = 22120000278. Its totient is φ = 22120000276.

The previous prime is 22120000141. The next prime is 22120000291. The reversal of 22120000277 is 77200002122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12932010961 + 9187989316 = 113719^2 + 95854^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120000277 - 2²⁴ = 22103223061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120000297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060000138 + 11060000139.

It is an arithmetic number, because the mean of its divisors is an integer number (11060000139).

Almost surely, 2^22120000277 is an apocalyptic number.

It is an amenable number.

22120000277 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120000277 is an equidigital number, since it uses as much as digits as its factorization.

22120000277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

Adding to 22120000277 its reverse (77200002122), we get a palindrome (99320002399).

The spelling of 22120000277 in words is "twenty-two billion, one hundred twenty million, two hundred seventy-seven", and thus it is an aban number.