22221112210949 has 2 divisors, whose sum is σ = 22221112210950. Its totient is φ = 22221112210948.

The previous prime is 22221112210933. The next prime is 22221112211009. The reversal of 22221112210949 is 94901221112222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22190270529025 + 30841681924 = 4710655^2 + 175618^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221112210949 - 2⁴ = 22221112210933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221112210909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110556105474 + 11110556105475.

It is an arithmetic number, because the mean of its divisors is an integer number (11110556105475).

Almost surely, 2^{22221112210949} is an apocalyptic number.

It is an amenable number.

22221112210949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221112210949 is an equidigital number, since it uses as much as digits as its factorization.

22221112210949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 22221112210949 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, two hundred ten thousand, nine hundred forty-nine".