2142231999 has 16 divisors (see below), whose sum is σ = 3046095360. Its totient is φ = 1334471040.

The previous prime is 2142231997. The next prime is 2142232009. The reversal of 2142231999 is 9991322412.

It is not a de Polignac number, because 2142231999 - 2¹ = 2142231997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142231999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142231997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144007 + ... + 158184.

It is an arithmetic number, because the mean of its divisors is an integer number (190380960).

Almost surely, 2^2142231999 is an apocalyptic number.

2142231999 is a deficient number, since it is larger than the sum of its proper divisors (903863361).

2142231999 is a wasteful number, since it uses less digits than its factorization.

2142231999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302350.

The product of its digits is 69984, while the sum is 42.

The square root of 2142231999 is about 46284.2521706898. The cubic root of 2142231999 is about 1289.1066063466.

The spelling of 2142231999 in words is "two billion, one hundred forty-two million, two hundred thirty-one thousand, nine hundred ninety-nine".