212021200231 has 2 divisors, whose sum is σ = 212021200232. Its totient is φ = 212021200230.

The previous prime is 212021200229. The next prime is 212021200247. The reversal of 212021200231 is 132002120212.

It is a happy number.

It is an a-pointer prime, because the next prime (212021200247) can be obtained adding 212021200231 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021200231 - 2¹ = 212021200229 is a prime.

It is a super-2 number, since 2×212021200231² (a number of 23 digits) contains 22 as substring.

Together with 212021200229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021200271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010600115 + 106010600116.

It is an arithmetic number, because the mean of its divisors is an integer number (106010600116).

Almost surely, 2^212021200231 is an apocalyptic number.

212021200231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021200231 is an equidigital number, since it uses as much as digits as its factorization.

212021200231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212021200231 its reverse (132002120212), we get a palindrome (344023320443).

The spelling of 212021200231 in words is "two hundred twelve billion, twenty-one million, two hundred thousand, two hundred thirty-one".