211210221001051 has 2 divisors, whose sum is σ = 211210221001052. Its totient is φ = 211210221001050.

The previous prime is 211210221001049. The next prime is 211210221001063. The reversal of 211210221001051 is 150100122012112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211210221001051 - 2¹ = 211210221001049 is a prime.

Together with 211210221001049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (211213221001051) 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 as a sum of consecutive naturals, namely, 105605110500525 + 105605110500526.

It is an arithmetic number, because the mean of its divisors is an integer number (105605110500526).

Almost surely, 2^{211210221001051} is an apocalyptic number.

211210221001051 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210221001051 is an equidigital number, since it uses as much as digits as its factorization.

211210221001051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 211210221001051 its reverse (150100122012112), we get a palindrome (361310343013163).

The spelling of 211210221001051 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty-one million, one thousand, fifty-one".