2143221354 has 24 divisors (see below), whose sum is σ = 4645085952. Its totient is φ = 714185640.

The previous prime is 2143221343. The next prime is 2143221361. The reversal of 2143221354 is 4531223412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47607 + ... + 80949.

It is an arithmetic number, because the mean of its divisors is an integer number (193545248).

Almost surely, 2^2143221354 is an apocalyptic number.

2143221354 is an abundant number, since it is smaller than the sum of its proper divisors (2501864598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143221354 is a wasteful number, since it uses less digits than its factorization.

2143221354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36922 (or 36919 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2143221354 is about 46294.9387514445. The cubic root of 2143221354 is about 1289.3050267758.

Adding to 2143221354 its reverse (4531223412), we get a palindrome (6674444766).

The spelling of 2143221354 in words is "two billion, one hundred forty-three million, two hundred twenty-one thousand, three hundred fifty-four".