22212623 has 8 divisors (see below), whose sum is σ = 22776768. Its totient is φ = 21652384.

The previous prime is 22212607. The next prime is 22212629. The reversal of 22212623 is 32621222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212623 - 2⁴ = 22212607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212595 and 22212604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212629) 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, 12965 + ... + 14577.

It is an arithmetic number, because the mean of its divisors is an integer number (2847096).

Almost surely, 2^22212623 is an apocalyptic number.

22212623 is a deficient number, since it is larger than the sum of its proper divisors (564145).

22212623 is a wasteful number, since it uses less digits than its factorization.

22212623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953.

The product of its digits is 576, while the sum is 20.

The square root of 22212623 is about 4713.0269466660. The cubic root of 22212623 is about 281.1037344491.

Adding to 22212623 its reverse (32621222), we get a palindrome (54833845).

The spelling of 22212623 in words is "twenty-two million, two hundred twelve thousand, six hundred twenty-three".