22227142 has 8 divisors (see below), whose sum is σ = 38103696. Its totient is φ = 9525912.

The previous prime is 22227133. The next prime is 22227157. The reversal of 22227142 is 24172222.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793813 + ... + 793840.

It is an arithmetic number, because the mean of its divisors is an integer number (4762962).

Almost surely, 2^22227142 is an apocalyptic number.

22227142 is a deficient number, since it is larger than the sum of its proper divisors (15876554).

22227142 is a wasteful number, since it uses less digits than its factorization.

22227142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587662.

The product of its digits is 896, while the sum is 22.

The square root of 22227142 is about 4714.5670002663. The cubic root of 22227142 is about 281.1649677428.

Adding to 22227142 its reverse (24172222), we get a palindrome (46399364).

The spelling of 22227142 in words is "twenty-two million, two hundred twenty-seven thousand, one hundred forty-two".