212321383123212 has 432 divisors, whose sum is σ = 599295955894272. Its totient is φ = 63328003200000.

The previous prime is 212321383123207. The next prime is 212321383123247.

212321383123212 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 2 + 13 + 8 + 312 + 321 + 2 = 666.

212321383123212 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 42371057787 + ... + 42371062797.

Almost surely, 2^{212321383123212} is an apocalyptic number.

212321383123212 is a gapful number since it is divisible by the number (22) 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 212321383123212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299647977947136).

212321383123212 is an abundant number, since it is smaller than the sum of its proper divisors (386974572771060).

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

212321383123212 is a wasteful number, since it uses less digits than its factorization.

212321383123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762 (or 5746 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The spelling of 212321383123212 in words is "two hundred twelve trillion, three hundred twenty-one billion, three hundred eighty-three million, one hundred twenty-three thousand, two hundred twelve".