22212422 has 8 divisors (see below), whose sum is σ = 33348216. Its totient is φ = 11096352.

The previous prime is 22212419. The next prime is 22212431. The reversal of 22212422 is 22421222.

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

It is a super-2 number, since 2×22212422² = 986783382212168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22212422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (4168527).

Almost surely, 2^22212422 is an apocalyptic number.

22212422 is a deficient number, since it is larger than the sum of its proper divisors (11135794).

22212422 is a wasteful number, since it uses less digits than its factorization.

22212422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862.

The product of its digits is 256, while the sum is 17.

The square root of 22212422 is about 4713.0056227422. The cubic root of 22212422 is about 281.1028865525.

Adding to 22212422 its reverse (22421222), we get a palindrome (44633644).

The spelling of 22212422 in words is "twenty-two million, two hundred twelve thousand, four hundred twenty-two".