142224212 has 12 divisors (see below), whose sum is σ = 268038036. Its totient is φ = 65641920.

The previous prime is 142224191. The next prime is 142224223. The reversal of 142224212 is 212422241.

It can be written as a sum of positive squares in 2 ways, for example, as 19324816 + 122899396 = 4396^2 + 11086^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367489 + ... + 1367592.

It is an arithmetic number, because the mean of its divisors is an integer number (22336503).

Almost surely, 2^142224212 is an apocalyptic number.

It is an amenable number.

142224212 is a deficient number, since it is larger than the sum of its proper divisors (125813824).

142224212 is a wasteful number, since it uses less digits than its factorization.

142224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735098 (or 2735096 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 142224212 is about 11925.7793036766. The cubic root of 142224212 is about 521.9847864309.

Adding to 142224212 its reverse (212422241), we get a palindrome (354646453).

The spelling of 142224212 in words is "one hundred forty-two million, two hundred twenty-four thousand, two hundred twelve".