142202222 has 4 divisors (see below), whose sum is σ = 213303336. Its totient is φ = 71101110.

The previous prime is 142202209. The next prime is 142202231. The reversal of 142202222 is 222202241.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142202222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35550554 + ... + 35550557.

It is an arithmetic number, because the mean of its divisors is an integer number (53325834).

Almost surely, 2^142202222 is an apocalyptic number.

142202222 is a deficient number, since it is larger than the sum of its proper divisors (71101114).

142202222 is an equidigital number, since it uses as much as digits as its factorization.

142202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71101113.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 142202222 is about 11924.8573157082. The cubic root of 142202222 is about 521.9578828142.

Adding to 142202222 its reverse (222202241), we get a palindrome (364404463).

The spelling of 142202222 in words is "one hundred forty-two million, two hundred two thousand, two hundred twenty-two".