22221021211049 has 2 divisors, whose sum is σ = 22221021211050. Its totient is φ = 22221021211048.

The previous prime is 22221021210961. The next prime is 22221021211057. The reversal of 22221021211049 is 94011212012222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18391172211049 + 3829849000000 = 4288493^2 + 1957000^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221021211049 - 2¹⁶ = 22221021145513 is a prime.

It is not a weakly prime, because it can be changed into another prime (22221021811049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110510605524 + 11110510605525.

It is an arithmetic number, because the mean of its divisors is an integer number (11110510605525).

Almost surely, 2^{22221021211049} is an apocalyptic number.

It is an amenable number.

22221021211049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221021211049 is an equidigital number, since it uses as much as digits as its factorization.

22221021211049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 22221021211049 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-one million, two hundred eleven thousand, forty-nine".