22271630 has 8 divisors (see below), whose sum is σ = 40088952. Its totient is φ = 8908648.

The previous prime is 22271617. The next prime is 22271633. The reversal of 22271630 is 3617222.

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 = 22271596 and 22271605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22271633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113572 + ... + 1113591.

It is an arithmetic number, because the mean of its divisors is an integer number (5011119).

Almost surely, 2^22271630 is an apocalyptic number.

22271630 is a deficient number, since it is larger than the sum of its proper divisors (17817322).

22271630 is a wasteful number, since it uses less digits than its factorization.

22271630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227170.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 22271630 is about 4719.2827844917. The cubic root of 22271630 is about 281.3524282066.

Adding to 22271630 its reverse (3617222), we get a palindrome (25888852).

The spelling of 22271630 in words is "twenty-two million, two hundred seventy-one thousand, six hundred thirty".