2231213712 has 120 divisors (see below), whose sum is σ = 7133275584. Its totient is φ = 588436992.

The previous prime is 2231213659. The next prime is 2231213729. The reversal of 2231213712 is 2173121322.

It is a happy number.

2231213712 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231213712³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37138 + ... + 76430.

Almost surely, 2^2231213712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231213712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3566637792).

2231213712 is an abundant number, since it is smaller than the sum of its proper divisors (4902061872).

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

2231213712 is a wasteful number, since it uses less digits than its factorization.

2231213712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39337 (or 39318 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 2231213712 is about 47235.7249547416. The cubic root of 2231213712 is about 1306.7135365436.

The spelling of 2231213712 in words is "two billion, two hundred thirty-one million, two hundred thirteen thousand, seven hundred twelve".