11821612 has 24 divisors (see below), whose sum is σ = 23122512. Its totient is φ = 5241600.

The previous prime is 11821583. The next prime is 11821627. The reversal of 11821612 is 21612811.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1473 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (963438).

Almost surely, 2^11821612 is an apocalyptic number.

It is an amenable number.

11821612 is a deficient number, since it is larger than the sum of its proper divisors (11300900).

11821612 is a wasteful number, since it uses less digits than its factorization.

11821612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609 (or 6607 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 11821612 is about 3438.2571166217. The cubic root of 11821612 is about 227.8027174138.

The spelling of 11821612 in words is "eleven million, eight hundred twenty-one thousand, six hundred twelve".