91222103 has 8 divisors (see below), whose sum is σ = 104317440. Its totient is φ = 78142680.

The previous prime is 91222099. The next prime is 91222111. The reversal of 91222103 is 30122219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91222103 - 2² = 91222099 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 (91222003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13358 + ... + 18996.

It is an arithmetic number, because the mean of its divisors is an integer number (13039680).

Almost surely, 2^91222103 is an apocalyptic number.

91222103 is a deficient number, since it is larger than the sum of its proper divisors (13095337).

91222103 is a wasteful number, since it uses less digits than its factorization.

91222103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 91222103 is about 9551.0262799345. The cubic root of 91222103 is about 450.1597835874.

The spelling of 91222103 in words is "ninety-one million, two hundred twenty-two thousand, one hundred three".