212201321231 has 8 divisors (see below), whose sum is σ = 219525966720. Its totient is φ = 204877166368.

The previous prime is 212201321219. The next prime is 212201321251. The reversal of 212201321231 is 132123102212.

212201321231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212201321231 is a prime.

It is a super-2 number, since 2×212201321231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201321251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902690 + ... + 1113216.

It is an arithmetic number, because the mean of its divisors is an integer number (27440745840).

Almost surely, 2^212201321231 is an apocalyptic number.

212201321231 is a deficient number, since it is larger than the sum of its proper divisors (7324645489).

212201321231 is a wasteful number, since it uses less digits than its factorization.

212201321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245313.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212201321231 its reverse (132123102212), we get a palindrome (344324423443).

The spelling of 212201321231 in words is "two hundred twelve billion, two hundred one million, three hundred twenty-one thousand, two hundred thirty-one".