991422232222 has 8 divisors (see below), whose sum is σ = 1487141660016. Its totient is φ = 495708345552.

The previous prime is 991422232217. The next prime is 991422232231. The reversal of 991422232222 is 222232224199.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904623 + ... + 1673674.

It is an arithmetic number, because the mean of its divisors is an integer number (185892707502).

Almost surely, 2^991422232222 is an apocalyptic number.

991422232222 is a deficient number, since it is larger than the sum of its proper divisors (495719427794).

991422232222 is a wasteful number, since it uses less digits than its factorization.

991422232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770562.

The product of its digits is 124416, while the sum is 40.

The spelling of 991422232222 in words is "nine hundred ninety-one billion, four hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty-two".