143222122 has 4 divisors (see below), whose sum is σ = 214833186. Its totient is φ = 71611060.

The previous prime is 143222119. The next prime is 143222137. The reversal of 143222122 is 221222341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221222341 = 179 ⋅1235879.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 58232161 = 9219^2 + 7631^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143222122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35805529 + ... + 35805532.

Almost surely, 2^143222122 is an apocalyptic number.

143222122 is a deficient number, since it is larger than the sum of its proper divisors (71611064).

143222122 is an equidigital number, since it uses as much as digits as its factorization.

143222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71611063.

The product of its digits is 384, while the sum is 19.

The square root of 143222122 is about 11967.5445267607. The cubic root of 143222122 is about 523.2027700672.

Adding to 143222122 its reverse (221222341), we get a palindrome (364444463).

The spelling of 143222122 in words is "one hundred forty-three million, two hundred twenty-two thousand, one hundred twenty-two".