142223122 has 16 divisors (see below), whose sum is σ = 235706112. Its totient is φ = 64018240.

The previous prime is 142223093. The next prime is 142223141. The reversal of 142223122 is 221322241.

It is a self number, because there is not a number n which added to its sum of digits gives 142223122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90154 + ... + 91717.

It is an arithmetic number, because the mean of its divisors is an integer number (14731632).

Almost surely, 2^142223122 is an apocalyptic number.

142223122 is a deficient number, since it is larger than the sum of its proper divisors (93482990).

142223122 is a wasteful number, since it uses less digits than its factorization.

142223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181913.

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

The square root of 142223122 is about 11925.7336042694. The cubic root of 142223122 is about 521.9834529382.

Adding to 142223122 its reverse (221322241), we get a palindrome (363545363).

The spelling of 142223122 in words is "one hundred forty-two million, two hundred twenty-three thousand, one hundred twenty-two".