91222130311 has 12 divisors (see below), whose sum is σ = 100253318952. Its totient is φ = 82948241376.

The previous prime is 91222130291. The next prime is 91222130333. The reversal of 91222130311 is 11303122219.

It is not a de Polignac number, because 91222130311 - 2⁹ = 91222129799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91222130381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4016856 + ... + 4039501.

It is an arithmetic number, because the mean of its divisors is an integer number (8354443246).

Almost surely, 2^91222130311 is an apocalyptic number.

91222130311 is a deficient number, since it is larger than the sum of its proper divisors (9031188641).

91222130311 is a wasteful number, since it uses less digits than its factorization.

91222130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056450 (or 8056437 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 91222130311 in words is "ninety-one billion, two hundred twenty-two million, one hundred thirty thousand, three hundred eleven".