220101111091 has 2 divisors, whose sum is σ = 220101111092. Its totient is φ = 220101111090.

The previous prime is 220101111053. The next prime is 220101111101. The reversal of 220101111091 is 190111101022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220101111091 - 2³¹ = 217953627443 is a prime.

It is not a weakly prime, because it can be changed into another prime (220101111001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050555545 + 110050555546.

It is an arithmetic number, because the mean of its divisors is an integer number (110050555546).

Almost surely, 2^220101111091 is an apocalyptic number.

220101111091 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101111091 is an equidigital number, since it uses as much as digits as its factorization.

220101111091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 220101111091 in words is "two hundred twenty billion, one hundred one million, one hundred eleven thousand, ninety-one".