22106661 has 8 divisors (see below), whose sum is σ = 29521440. Its totient is φ = 14714832.

The previous prime is 22106653. The next prime is 22106677. The reversal of 22106661 is 16660122.

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

It is not a de Polignac number, because 22106661 - 2³ = 22106653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22106261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3346 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (3690180).

Almost surely, 2^22106661 is an apocalyptic number.

It is an amenable number.

22106661 is a deficient number, since it is larger than the sum of its proper divisors (7414779).

22106661 is a wasteful number, since it uses less digits than its factorization.

22106661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22106661 is about 4701.7721127252. The cubic root of 22106661 is about 280.6560340048.

Adding to 22106661 its reverse (16660122), we get a palindrome (38766783).

The spelling of 22106661 in words is "twenty-two million, one hundred six thousand, six hundred sixty-one".