142011222 has 8 divisors (see below), whose sum is σ = 284022456. Its totient is φ = 47337072.

The previous prime is 142011209. The next prime is 142011227. The reversal of 142011222 is 222110241.

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

142011222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142011227) 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, 11834263 + ... + 11834274.

It is an arithmetic number, because the mean of its divisors is an integer number (35502807).

Almost surely, 2^142011222 is an apocalyptic number.

142011222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142011222 is a wasteful number, since it uses less digits than its factorization.

142011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23668542.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 142011222 is about 11916.8461431706. The cubic root of 142011222 is about 521.7240875367.

Adding to 142011222 its reverse (222110241), we get a palindrome (364121463).

The spelling of 142011222 in words is "one hundred forty-two million, eleven thousand, two hundred twenty-two".