2421211312 has 80 divisors (see below), whose sum is σ = 5133893632. Its totient is φ = 1099526400.

The previous prime is 2421211307. The next prime is 2421211313. The reversal of 2421211312 is 2131121242.

It is a super-2 number, since 2×2421211312² = 11724528434713522688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2421211312.

It is not an unprimeable number, because it can be changed into a prime (2421211313) 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, 3988513 + ... + 3989119.

Almost surely, 2^2421211312 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 2421211312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566946816).

2421211312 is an abundant number, since it is smaller than the sum of its proper divisors (2712682320).

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

2421211312 is a wasteful number, since it uses less digits than its factorization.

2421211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 900 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2421211312 is about 49205.8056737211. The cubic root of 2421211312 is about 1342.7986566263.

Adding to 2421211312 its reverse (2131121242), we get a palindrome (4552332554).

The spelling of 2421211312 in words is "two billion, four hundred twenty-one million, two hundred eleven thousand, three hundred twelve".