2201221012091 has 2 divisors, whose sum is σ = 2201221012092. Its totient is φ = 2201221012090.

The previous prime is 2201221012069. The next prime is 2201221012117. The reversal of 2201221012091 is 1902101221022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201221012091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201221012391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100610506045 + 1100610506046.

It is an arithmetic number, because the mean of its divisors is an integer number (1100610506046).

Almost surely, 2^{2201221012091} is an apocalyptic number.

2201221012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201221012091 is an equidigital number, since it uses as much as digits as its factorization.

2201221012091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 2201221012091 in words is "two trillion, two hundred one billion, two hundred twenty-one million, twelve thousand, ninety-one".