110220100210991 has 2 divisors, whose sum is σ = 110220100210992. Its totient is φ = 110220100210990.

The previous prime is 110220100210981. The next prime is 110220100211021. The reversal of 110220100210991 is 199012001022011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 110220100210991 - 2²² = 110220096016687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110220100210901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110050105495 + 55110050105496.

It is an arithmetic number, because the mean of its divisors is an integer number (55110050105496).

Almost surely, 2^{110220100210991} is an apocalyptic number.

110220100210991 is a deficient number, since it is larger than the sum of its proper divisors (1).

110220100210991 is an equidigital number, since it uses as much as digits as its factorization.

110220100210991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 110220100210991 in words is "one hundred ten trillion, two hundred twenty billion, one hundred million, two hundred ten thousand, nine hundred ninety-one".