212013202231 has 4 divisors (see below), whose sum is σ = 212572604200. Its totient is φ = 211453800264.

The previous prime is 212013202223. The next prime is 212013202307. The reversal of 212013202231 is 132202310212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212013202231 - 2³ = 212013202223 is a prime.

It is a super-2 number, since 2×212013202231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212013202199 and 212013202208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279700416 + ... + 279701173.

It is an arithmetic number, because the mean of its divisors is an integer number (53143151050).

Almost surely, 2^212013202231 is an apocalyptic number.

212013202231 is a deficient number, since it is larger than the sum of its proper divisors (559401969).

212013202231 is an equidigital number, since it uses as much as digits as its factorization.

212013202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559401968.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212013202231 its reverse (132202310212), we get a palindrome (344215512443).

The spelling of 212013202231 in words is "two hundred twelve billion, thirteen million, two hundred two thousand, two hundred thirty-one".