221012210215103 has 2 divisors, whose sum is σ = 221012210215104. Its totient is φ = 221012210215102.

The previous prime is 221012210215021. The next prime is 221012210215127. The reversal of 221012210215103 is 301512012210122.

221012210215103 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 a de Polignac number, because none of the positive numbers 2^k-221012210215103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221012210211103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110506105107551 + 110506105107552.

It is an arithmetic number, because the mean of its divisors is an integer number (110506105107552).

Almost surely, 2^{221012210215103} is an apocalyptic number.

221012210215103 is a deficient number, since it is larger than the sum of its proper divisors (1).

221012210215103 is an equidigital number, since it uses as much as digits as its factorization.

221012210215103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 221012210215103 its reverse (301512012210122), we get a palindrome (522524222425225).

The spelling of 221012210215103 in words is "two hundred twenty-one trillion, twelve billion, two hundred ten million, two hundred fifteen thousand, one hundred three".