22106851 has 16 divisors (see below), whose sum is σ = 25601184. Its totient is φ = 18906624.

The previous prime is 22106789. The next prime is 22106857. The reversal of 22106851 is 15860122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22106851 is a prime.

It is a super-2 number, since 2×22106851² = 977425722272402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22106857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14061 + ... + 15553.

It is an arithmetic number, because the mean of its divisors is an integer number (1600074).

Almost surely, 2^22106851 is an apocalyptic number.

22106851 is a deficient number, since it is larger than the sum of its proper divisors (3494333).

22106851 is a wasteful number, since it uses less digits than its factorization.

22106851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 22106851 is about 4701.7923178294. The cubic root of 22106851 is about 280.6568380535.

Adding to 22106851 its reverse (15860122), we get a palindrome (37966973).

The spelling of 22106851 in words is "twenty-two million, one hundred six thousand, eight hundred fifty-one".