22131669 has 16 divisors (see below), whose sum is σ = 34888320. Its totient is φ = 12210240.

The previous prime is 22131649. The next prime is 22131673. The reversal of 22131669 is 96613122.

It is not a de Polignac number, because 22131669 - 2¹⁶ = 22066133 is a prime.

It is a super-2 number, since 2×22131669² = 979621545451122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131619) 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, 17562 + ... + 18779.

It is an arithmetic number, because the mean of its divisors is an integer number (2180520).

Almost surely, 2^22131669 is an apocalyptic number.

22131669 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22131669 is a deficient number, since it is larger than the sum of its proper divisors (12756651).

22131669 is a wasteful number, since it uses less digits than its factorization.

22131669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36380.

The product of its digits is 3888, while the sum is 30.

The square root of 22131669 is about 4704.4307838462. The cubic root of 22131669 is about 280.7618241581.

The spelling of 22131669 in words is "twenty-two million, one hundred thirty-one thousand, six hundred sixty-nine".