220241291 has 2 divisors, whose sum is σ = 220241292. Its totient is φ = 220241290.

The previous prime is 220241257. The next prime is 220241303. The reversal of 220241291 is 192142022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220241291 - 2¹⁸ = 219979147 is a prime.

It is a super-2 number, since 2×220241291² = 97012452522693362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220241251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110120645 + 110120646.

It is an arithmetic number, because the mean of its divisors is an integer number (110120646).

Almost surely, 2^220241291 is an apocalyptic number.

220241291 is a deficient number, since it is larger than the sum of its proper divisors (1).

220241291 is an equidigital number, since it uses as much as digits as its factorization.

220241291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 220241291 is about 14840.5286630901. The cubic root of 220241291 is about 603.9016942694.

The spelling of 220241291 in words is "two hundred twenty million, two hundred forty-one thousand, two hundred ninety-one".