142321222 has 8 divisors (see below), whose sum is σ = 213561000. Its totient is φ = 71134224.

The previous prime is 142321219. The next prime is 142321243. The reversal of 142321222 is 222123241.

142321222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142321222.

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, 5572 + ... + 17767.

It is an arithmetic number, because the mean of its divisors is an integer number (26695125).

Almost surely, 2^142321222 is an apocalyptic number.

142321222 is a deficient number, since it is larger than the sum of its proper divisors (71239778).

142321222 is a wasteful number, since it uses less digits than its factorization.

142321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26390.

The product of its digits is 384, while the sum is 19.

The square root of 142321222 is about 11929.8458498004. The cubic root of 142321222 is about 522.1034400099.

Adding to 142321222 its reverse (222123241), we get a palindrome (364444463).

The spelling of 142321222 in words is "one hundred forty-two million, three hundred twenty-one thousand, two hundred twenty-two".