22224142 has 8 divisors (see below), whose sum is σ = 33388632. Its totient is φ = 11094600.

The previous prime is 22224131. The next prime is 22224149. The reversal of 22224142 is 24142222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224149) 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, 7084 + ... + 9727.

It is an arithmetic number, because the mean of its divisors is an integer number (4173579).

Almost surely, 2^22224142 is an apocalyptic number.

22224142 is a deficient number, since it is larger than the sum of its proper divisors (11164490).

22224142 is a wasteful number, since it uses less digits than its factorization.

22224142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17474.

The product of its digits is 512, while the sum is 19.

The square root of 22224142 is about 4714.2488266955. The cubic root of 22224142 is about 281.1523175506.

Adding to 22224142 its reverse (24142222), we get a palindrome (46366364).

It can be divided in two parts, 22224 and 142, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 22224142 in words is "twenty-two million, two hundred twenty-four thousand, one hundred forty-two".