221211234400103 has 2 divisors, whose sum is σ = 221211234400104. Its totient is φ = 221211234400102.

The previous prime is 221211234400073. The next prime is 221211234400193. The reversal of 221211234400103 is 301004432112122.

It is a happy number.

221211234400103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221211234400103 - 2²⁸ = 221210965964647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221211234400193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605617200051 + 110605617200052.

It is an arithmetic number, because the mean of its divisors is an integer number (110605617200052).

Almost surely, 2^{221211234400103} is an apocalyptic number.

221211234400103 is a deficient number, since it is larger than the sum of its proper divisors (1).

221211234400103 is an equidigital number, since it uses as much as digits as its factorization.

221211234400103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 221211234400103 its reverse (301004432112122), we get a palindrome (522215666512225).

The spelling of 221211234400103 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred thirty-four million, four hundred thousand, one hundred three".