220212211091 has 2 divisors, whose sum is σ = 220212211092. Its totient is φ = 220212211090.

The previous prime is 220212211013. The next prime is 220212211111. The reversal of 220212211091 is 190112212022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220212211091 - 2¹⁰ = 220212210067 is a prime.

It is not a weakly prime, because it can be changed into another prime (220212411091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110106105545 + 110106105546.

It is an arithmetic number, because the mean of its divisors is an integer number (110106105546).

Almost surely, 2^220212211091 is an apocalyptic number.

220212211091 is a deficient number, since it is larger than the sum of its proper divisors (1).

220212211091 is an equidigital number, since it uses as much as digits as its factorization.

220212211091 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 23.

The spelling of 220212211091 in words is "two hundred twenty billion, two hundred twelve million, two hundred eleven thousand, ninety-one".