143112222 has 144 divisors (see below), whose sum is σ = 374132304. Its totient is φ = 39168000.

The previous prime is 143112209. The next prime is 143112259. The reversal of 143112222 is 222211341.

It is a happy number.

143112222 is a `hidden beast` number, since 1 + 431 + 12 + 222 = 666.

It is a super-2 number, since 2×143112222² = 40962216171554568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 143112195 and 143112204.

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 71 ways as a sum of consecutive naturals, for example, 2346072 + ... + 2346132.

It is an arithmetic number, because the mean of its divisors is an integer number (2598141).

Almost surely, 2^143112222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143112222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187066152).

143112222 is an abundant number, since it is smaller than the sum of its proper divisors (231020082).

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

143112222 is a wasteful number, since it uses less digits than its factorization.

143112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 135 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 143112222 is about 11962.9520604239. The cubic root of 143112222 is about 523.0689110952.

Adding to 143112222 its reverse (222211341), we get a palindrome (365323563).

The spelling of 143112222 in words is "one hundred forty-three million, one hundred twelve thousand, two hundred twenty-two".