12001622 has 8 divisors (see below), whose sum is σ = 18110736. Its totient is φ = 5964712.

The previous prime is 12001571. The next prime is 12001667. The reversal of 12001622 is 22610021.

12001622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12001597 and 12001606.

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, 17633 + ... + 18300.

It is an arithmetic number, because the mean of its divisors is an integer number (2263842).

Almost surely, 2^12001622 is an apocalyptic number.

12001622 is a deficient number, since it is larger than the sum of its proper divisors (6109114).

12001622 is a wasteful number, since it uses less digits than its factorization.

12001622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36102.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12001622 is about 3464.3357227613. The cubic root of 12001622 is about 228.9531631932.

Adding to 12001622 its reverse (22610021), we get a palindrome (34611643).

The spelling of 12001622 in words is "twelve million, one thousand, six hundred twenty-two".