222101443 has 4 divisors (see below), whose sum is σ = 224777448. Its totient is φ = 219425440.

The previous prime is 222101437. The next prime is 222101489. The reversal of 222101443 is 344101222.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-222101443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222101443.

It is not an unprimeable number, because it can be changed into a prime (222108443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337878 + ... + 1338043.

It is an arithmetic number, because the mean of its divisors is an integer number (56194362).

Almost surely, 2^222101443 is an apocalyptic number.

222101443 is a deficient number, since it is larger than the sum of its proper divisors (2676005).

222101443 is an equidigital number, since it uses as much as digits as its factorization.

222101443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676004.

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

The square root of 222101443 is about 14903.0682411375. The cubic root of 222101443 is about 605.5971091848.

Adding to 222101443 its reverse (344101222), we get a palindrome (566202665).

It can be divided in two parts, 22210 and 1443, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 222101443 in words is "two hundred twenty-two million, one hundred one thousand, four hundred forty-three".