220211211021091 has 2 divisors, whose sum is σ = 220211211021092. Its totient is φ = 220211211021090.

The previous prime is 220211211021041. The next prime is 220211211021127. The reversal of 220211211021091 is 190120112112022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220211211021091 - 2⁹ = 220211211020579 is a prime.

It is not a weakly prime, because it can be changed into another prime (220211211021041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105605510545 + 110105605510546.

It is an arithmetic number, because the mean of its divisors is an integer number (110105605510546).

Almost surely, 2^{220211211021091} is an apocalyptic number.

220211211021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211211021091 is an equidigital number, since it uses as much as digits as its factorization.

220211211021091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 220211211021091 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred eleven million, twenty-one thousand, ninety-one".