211212221200103 has 2 divisors, whose sum is σ = 211212221200104. Its totient is φ = 211212221200102.

The previous prime is 211212221200091. The next prime is 211212221200111. The reversal of 211212221200103 is 301002122212112.

211212221200103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211212221200103 - 2⁶ = 211212221200039 is a prime.

It is a super-2 number, since 2×211212221200103² (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 (211212221500103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606110600051 + 105606110600052.

It is an arithmetic number, because the mean of its divisors is an integer number (105606110600052).

Almost surely, 2^{211212221200103} is an apocalyptic number.

211212221200103 is a deficient number, since it is larger than the sum of its proper divisors (1).

211212221200103 is an equidigital number, since it uses as much as digits as its factorization.

211212221200103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 211212221200103 its reverse (301002122212112), we get a palindrome (512214343412215).

The spelling of 211212221200103 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred twenty-one million, two hundred thousand, one hundred three".