2143331212 has 12 divisors (see below), whose sum is σ = 4091814216. Its totient is φ = 974241440.

The previous prime is 2143331191. The next prime is 2143331221. The reversal of 2143331212 is 2121333412.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24355993 + ... + 24356080.

It is an arithmetic number, because the mean of its divisors is an integer number (340984518).

Almost surely, 2^2143331212 is an apocalyptic number.

2143331212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2143331212 is a deficient number, since it is larger than the sum of its proper divisors (1948483004).

2143331212 is a wasteful number, since it uses less digits than its factorization.

2143331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48712088 (or 48712086 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 2143331212 is about 46296.1252374321. The cubic root of 2143331212 is about 1289.3270556175.

Adding to 2143331212 its reverse (2121333412), we get a palindrome (4264664624).

The spelling of 2143331212 in words is "two billion, one hundred forty-three million, three hundred thirty-one thousand, two hundred twelve".