22221402143 has 4 divisors (see below), whose sum is σ = 22221721368. Its totient is φ = 22221082920.

The previous prime is 22221402121. The next prime is 22221402149. The reversal of 22221402143 is 34120412222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22221402143 - 2⁶ = 22221402079 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 (22221402149) 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, 5768 + ... + 210893.

It is an arithmetic number, because the mean of its divisors is an integer number (5555430342).

Almost surely, 2^22221402143 is an apocalyptic number.

22221402143 is a deficient number, since it is larger than the sum of its proper divisors (319225).

22221402143 is a wasteful number, since it uses less digits than its factorization.

22221402143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319224.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22221402143 its reverse (34120412222), we get a palindrome (56341814365).

The spelling of 22221402143 in words is "twenty-two billion, two hundred twenty-one million, four hundred two thousand, one hundred forty-three".