3211112388 has 96 divisors (see below), whose sum is σ = 8708636160. Its totient is φ = 910103040.

The previous prime is 3211112381. The next prime is 3211112389. The reversal of 3211112388 is 8832111123.

It is a super-2 number, since 2×3211112388² = 20622485536734125088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3211112381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361383 + ... + 370161.

It is an arithmetic number, because the mean of its divisors is an integer number (90714960).

Almost surely, 2^3211112388 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 3211112388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354318080).

3211112388 is an abundant number, since it is smaller than the sum of its proper divisors (5497523772).

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

3211112388 is a wasteful number, since it uses less digits than its factorization.

3211112388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977 (or 8975 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 3211112388 is about 56666.6779333322. The cubic root of 3211112388 is about 1475.3163949057.

The spelling of 3211112388 in words is "three billion, two hundred eleven million, one hundred twelve thousand, three hundred eighty-eight".