142222244 has 12 divisors (see below), whose sum is σ = 249387264. Its totient is φ = 70968744.

The previous prime is 142222231. The next prime is 142222261. The reversal of 142222244 is 442222241.

It is a nude number because it is divisible by every one of its digits.

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, 33332 + ... + 37355.

It is an arithmetic number, because the mean of its divisors is an integer number (20782272).

Almost surely, 2^142222244 is an apocalyptic number.

It is an amenable number.

142222244 is a deficient number, since it is larger than the sum of its proper divisors (107165020).

142222244 is a wasteful number, since it uses less digits than its factorization.

142222244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71194 (or 71192 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 142222244 is about 11925.6967930599. The cubic root of 142222244 is about 521.9823787987.

Adding to 142222244 its reverse (442222241), we get a palindrome (584444485).

The spelling of 142222244 in words is "one hundred forty-two million, two hundred twenty-two thousand, two hundred forty-four".