11910222 has 12 divisors (see below), whose sum is σ = 25805520. Its totient is φ = 3970068.

The previous prime is 11910221. The next prime is 11910229. The reversal of 11910222 is 22201911.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 661679 = 11910222 / (1 + 1 + 9 + 1 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 11910195 and 11910204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11910221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330822 + ... + 330857.

It is an arithmetic number, because the mean of its divisors is an integer number (2150460).

Almost surely, 2^11910222 is an apocalyptic number.

11910222 is an abundant number, since it is smaller than the sum of its proper divisors (13895298).

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

11910222 is a wasteful number, since it uses less digits than its factorization.

11910222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661687 (or 661684 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 11910222 is about 3451.1189489787. The cubic root of 11910222 is about 228.3704734135.

The spelling of 11910222 in words is "eleven million, nine hundred ten thousand, two hundred twenty-two".