11958222 has 8 divisors (see below), whose sum is σ = 23916456. Its totient is φ = 3986072.

The previous prime is 11958211. The next prime is 11958223. The reversal of 11958222 is 22285911.

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

11958222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 11958222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11958223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996513 + ... + 996524.

It is an arithmetic number, because the mean of its divisors is an integer number (2989557).

Almost surely, 2^11958222 is an apocalyptic number.

11958222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11958222 is a wasteful number, since it uses less digits than its factorization.

11958222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993042.

The product of its digits is 2880, while the sum is 30.

The square root of 11958222 is about 3458.0662226163. The cubic root of 11958222 is about 228.6768514061.

The spelling of 11958222 in words is "eleven million, nine hundred fifty-eight thousand, two hundred twenty-two".