22202143 has 4 divisors (see below), whose sum is σ = 22217200. Its totient is φ = 22187088.

The previous prime is 22202137. The next prime is 22202209. The reversal of 22202143 is 34120222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34120222 = 2 ⋅17060111.

It is a cyclic number.

It is not a de Polignac number, because 22202143 - 2⁵ = 22202111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5043 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (5554300).

Almost surely, 2^22202143 is an apocalyptic number.

22202143 is a deficient number, since it is larger than the sum of its proper divisors (15057).

22202143 is a wasteful number, since it uses less digits than its factorization.

22202143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15056.

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

The square root of 22202143 is about 4711.9150034779. The cubic root of 22202143 is about 281.0595188910.

Adding to 22202143 its reverse (34120222), we get a palindrome (56322365).

The spelling of 22202143 in words is "twenty-two million, two hundred two thousand, one hundred forty-three".