142223222 has 8 divisors (see below), whose sum is σ = 217874016. Its totient is φ = 69598552.

The previous prime is 142223201. The next prime is 142223261. The reversal of 142223222 is 222322241.

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

It is a super-2 number, since 2×142223222² = 40454889752122568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142223194 and 142223203.

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, 756413 + ... + 756600.

It is an arithmetic number, because the mean of its divisors is an integer number (27234252).

Almost surely, 2^142223222 is an apocalyptic number.

142223222 is a deficient number, since it is larger than the sum of its proper divisors (75650794).

142223222 is a wasteful number, since it uses less digits than its factorization.

142223222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513062.

The product of its digits is 768, while the sum is 20.

The square root of 142223222 is about 11925.7377968828. The cubic root of 142223222 is about 521.9835752773.

Adding to 142223222 its reverse (222322241), we get a palindrome (364545463).

The spelling of 142223222 in words is "one hundred forty-two million, two hundred twenty-three thousand, two hundred twenty-two".