22220221211291 has 2 divisors, whose sum is σ = 22220221211292. Its totient is φ = 22220221211290.

The previous prime is 22220221211249. The next prime is 22220221211297. The reversal of 22220221211291 is 19211212202222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22220221211291 - 2¹⁰ = 22220221210267 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220221211297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110110605645 + 11110110605646.

It is an arithmetic number, because the mean of its divisors is an integer number (11110110605646).

Almost surely, 2^{22220221211291} is an apocalyptic number.

22220221211291 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220221211291 is an equidigital number, since it uses as much as digits as its factorization.

22220221211291 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 22220221211291 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, two hundred ninety-one".