2212222210091 has 2 divisors, whose sum is σ = 2212222210092. Its totient is φ = 2212222210090.

The previous prime is 2212222210049. The next prime is 2212222210129. The reversal of 2212222210091 is 1900122222122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212222210091 - 2³⁰ = 2211148468267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212222210091.

It is not a weakly prime, because it can be changed into another prime (2212222210001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106111105045 + 1106111105046.

It is an arithmetic number, because the mean of its divisors is an integer number (1106111105046).

Almost surely, 2^{2212222210091} is an apocalyptic number.

2212222210091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212222210091 is an equidigital number, since it uses as much as digits as its factorization.

2212222210091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 2212222210091 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred ten thousand, ninety-one".