22143202 has 4 divisors (see below), whose sum is σ = 33214806. Its totient is φ = 11071600.

The previous prime is 22143193. The next prime is 22143217. The reversal of 22143202 is 20234122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20234122 = 2 ⋅10117061.

It can be written as a sum of positive squares in only one way, i.e., 21706281 + 436921 = 4659^2 + 661^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5535799 + ... + 5535802.

Almost surely, 2^22143202 is an apocalyptic number.

22143202 is a deficient number, since it is larger than the sum of its proper divisors (11071604).

22143202 is a wasteful number, since it uses less digits than its factorization.

22143202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11071603.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22143202 is about 4705.6563835452. The cubic root of 22143202 is about 280.8105848100.

Adding to 22143202 its reverse (20234122), we get a palindrome (42377324).

The spelling of 22143202 in words is "twenty-two million, one hundred forty-three thousand, two hundred two".