2223121143 has 16 divisors (see below), whose sum is σ = 3100790016. Its totient is φ = 1414089600.

The previous prime is 2223121139. The next prime is 2223121183. The reversal of 2223121143 is 3411213222.

It is not a de Polignac number, because 2223121143 - 2² = 2223121139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223121183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12505 + ... + 67842.

It is an arithmetic number, because the mean of its divisors is an integer number (193799376).

Almost surely, 2^2223121143 is an apocalyptic number.

2223121143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2223121143 is a deficient number, since it is larger than the sum of its proper divisors (877668873).

2223121143 is a wasteful number, since it uses less digits than its factorization.

2223121143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80774.

The product of its digits is 576, while the sum is 21.

The square root of 2223121143 is about 47149.9856097539. The cubic root of 2223121143 is about 1305.1318144624.

Adding to 2223121143 its reverse (3411213222), we get a palindrome (5634334365).

The spelling of 2223121143 in words is "two billion, two hundred twenty-three million, one hundred twenty-one thousand, one hundred forty-three".