220012201091 has 2 divisors, whose sum is σ = 220012201092. Its totient is φ = 220012201090.

The previous prime is 220012201021. The next prime is 220012201103. The reversal of 220012201091 is 190102210022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220012201091 is a prime.

It is not a weakly prime, because it can be changed into another prime (220012201021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110006100545 + 110006100546.

It is an arithmetic number, because the mean of its divisors is an integer number (110006100546).

Almost surely, 2^220012201091 is an apocalyptic number.

220012201091 is a deficient number, since it is larger than the sum of its proper divisors (1).

220012201091 is an equidigital number, since it uses as much as digits as its factorization.

220012201091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 220012201091 in words is "two hundred twenty billion, twelve million, two hundred one thousand, ninety-one".