91222202 has 8 divisors (see below), whose sum is σ = 136920576. Its totient is φ = 45582012.

The previous prime is 91222199. The next prime is 91222207. The reversal of 91222202 is 20222219.

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

It is not an unprimeable number, because it can be changed into a prime (91222207) 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 3 ways as a sum of consecutive naturals, for example, 10388 + ... + 17039.

It is an arithmetic number, because the mean of its divisors is an integer number (17115072).

Almost surely, 2^91222202 is an apocalyptic number.

91222202 is a deficient number, since it is larger than the sum of its proper divisors (45698374).

91222202 is a wasteful number, since it uses less digits than its factorization.

91222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29092.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 91222202 is about 9551.0314626222. The cubic root of 91222202 is about 450.1599464346.

The spelling of 91222202 in words is "ninety-one million, two hundred twenty-two thousand, two hundred two".