2159143222 has 4 divisors (see below), whose sum is σ = 3238714836. Its totient is φ = 1079571610.

The previous prime is 2159143201. The next prime is 2159143229. The reversal of 2159143222 is 2223419512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159143229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539785804 + ... + 539785807.

It is an arithmetic number, because the mean of its divisors is an integer number (809678709).

Almost surely, 2^2159143222 is an apocalyptic number.

2159143222 is a deficient number, since it is larger than the sum of its proper divisors (1079571614).

2159143222 is a wasteful number, since it uses less digits than its factorization.

2159143222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079571613.

The product of its digits is 8640, while the sum is 31.

The square root of 2159143222 is about 46466.5817765843. The cubic root of 2159143222 is about 1292.4898773193.

The spelling of 2159143222 in words is "two billion, one hundred fifty-nine million, one hundred forty-three thousand, two hundred twenty-two".