220111122111091 has 2 divisors, whose sum is σ = 220111122111092. Its totient is φ = 220111122111090.

The previous prime is 220111122111079. The next prime is 220111122111157. The reversal of 220111122111091 is 190111221111022.

220111122111091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220111122111091 - 2¹³ = 220111122102899 is a prime.

It is a super-2 number, since 2×220111122111091² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220111122111031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055561055545 + 110055561055546.

It is an arithmetic number, because the mean of its divisors is an integer number (110055561055546).

Almost surely, 2^{220111122111091} is an apocalyptic number.

220111122111091 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111122111091 is an equidigital number, since it uses as much as digits as its factorization.

220111122111091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 220111122111091 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, ninety-one".