22231142 has 8 divisors (see below), whose sum is σ = 33366816. Its totient is φ = 11108872.

The previous prime is 22231067. The next prime is 22231147. The reversal of 22231142 is 24113222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22231142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231147) 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, 4208 + ... + 7884.

It is an arithmetic number, because the mean of its divisors is an integer number (4170852).

Almost surely, 2^22231142 is an apocalyptic number.

22231142 is a deficient number, since it is larger than the sum of its proper divisors (11135674).

22231142 is a wasteful number, since it uses less digits than its factorization.

22231142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702.

The product of its digits is 192, while the sum is 17.

The square root of 22231142 is about 4714.9911982951. The cubic root of 22231142 is about 281.1818328952.

Adding to 22231142 its reverse (24113222), we get a palindrome (46344364).

The spelling of 22231142 in words is "twenty-two million, two hundred thirty-one thousand, one hundred forty-two".