143222012 has 12 divisors (see below), whose sum is σ = 261536016. Its totient is φ = 68497440.

The previous prime is 143221951. The next prime is 143222021. The reversal of 143222012 is 210222341.

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, 778289 + ... + 778472.

It is an arithmetic number, because the mean of its divisors is an integer number (21794668).

Almost surely, 2^143222012 is an apocalyptic number.

It is an amenable number.

143222012 is a deficient number, since it is larger than the sum of its proper divisors (118314004).

143222012 is a wasteful number, since it uses less digits than its factorization.

143222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556788 (or 1556786 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143222012 is about 11967.5399309967. The cubic root of 143222012 is about 523.2026361207.

Adding to 143222012 its reverse (210222341), we get a palindrome (353444353).

The spelling of 143222012 in words is "one hundred forty-three million, two hundred twenty-two thousand, twelve".