221002002132091 has 2 divisors, whose sum is σ = 221002002132092. Its totient is φ = 221002002132090.

The previous prime is 221002002132059. The next prime is 221002002132151. The reversal of 221002002132091 is 190231200200122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002002132091 - 2⁵ = 221002002132059 is a prime.

It is not a weakly prime, because it can be changed into another prime (221002002132011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501001066045 + 110501001066046.

It is an arithmetic number, because the mean of its divisors is an integer number (110501001066046).

Almost surely, 2^{221002002132091} is an apocalyptic number.

221002002132091 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002002132091 is an equidigital number, since it uses as much as digits as its factorization.

221002002132091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 221002002132091 in words is "two hundred twenty-one trillion, two billion, two million, one hundred thirty-two thousand, ninety-one".