22212007090549 has 2 divisors, whose sum is σ = 22212007090550. Its totient is φ = 22212007090548.

The previous prime is 22212007090547. The next prime is 22212007090561. The reversal of 22212007090549 is 94509070021222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22210314179524 + 1692911025 = 4712782^2 + 41145^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212007090549 - 2¹ = 22212007090547 is a prime.

Together with 22212007090547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212007090543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106003545274 + 11106003545275.

It is an arithmetic number, because the mean of its divisors is an integer number (11106003545275).

Almost surely, 2^{22212007090549} is an apocalyptic number.

It is an amenable number.

22212007090549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212007090549 is an equidigital number, since it uses as much as digits as its factorization.

22212007090549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 22212007090549 in words is "twenty-two trillion, two hundred twelve billion, seven million, ninety thousand, five hundred forty-nine".