3021213312 has 192 divisors, whose sum is σ = 9505510560. Its totient is φ = 915425280.

The previous prime is 3021213311. The next prime is 3021213319. The reversal of 3021213312 is 2133121203.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3021213311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1001887 + ... + 1004897.

Almost surely, 2^3021213312 is an apocalyptic number.

3021213312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3021213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4752755280).

3021213312 is an abundant number, since it is smaller than the sum of its proper divisors (6484297248).

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

3021213312 is a wasteful number, since it uses less digits than its factorization.

3021213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3021213312 is about 54965.5647837808. The cubic root of 3021213312 is about 1445.6410212919.

Adding to 3021213312 its reverse (2133121203), we get a palindrome (5154334515).

The spelling of 3021213312 in words is "three billion, twenty-one million, two hundred thirteen thousand, three hundred twelve".