11912216 has 16 divisors (see below), whose sum is σ = 22444440. Its totient is φ = 5927040.

The previous prime is 11912191. The next prime is 11912237. The reversal of 11912216 is 61221911.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11912191 and 11912200.

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, 1841 + ... + 5216.

Almost surely, 2^11912216 is an apocalyptic number.

It is an amenable number.

11912216 is a deficient number, since it is larger than the sum of its proper divisors (10532224).

11912216 is a wasteful number, since it uses less digits than its factorization.

11912216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274 (or 7270 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

The square root of 11912216 is about 3451.4078286983. The cubic root of 11912216 is about 228.3832172373.

The spelling of 11912216 in words is "eleven million, nine hundred twelve thousand, two hundred sixteen".