211021210000231 has 2 divisors, whose sum is σ = 211021210000232. Its totient is φ = 211021210000230.

The previous prime is 211021210000163. The next prime is 211021210000241. The reversal of 211021210000231 is 132000012120112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211021210000231 - 2²⁹ = 211020673129319 is a prime.

It is a super-2 number, since 2×211021210000231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211021210000241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510605000115 + 105510605000116.

It is an arithmetic number, because the mean of its divisors is an integer number (105510605000116).

Almost surely, 2^{211021210000231} is an apocalyptic number.

211021210000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021210000231 is an equidigital number, since it uses as much as digits as its factorization.

211021210000231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211021210000231 its reverse (132000012120112), we get a palindrome (343021222120343).

The spelling of 211021210000231 in words is "two hundred eleven trillion, twenty-one billion, two hundred ten million, two hundred thirty-one", and thus it is an aban number.