2221110121247 has 2 divisors, whose sum is σ = 2221110121248. Its totient is φ = 2221110121246.

The previous prime is 2221110121193. The next prime is 2221110121267. The reversal of 2221110121247 is 7421210111222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221110121247 - 2¹⁰ = 2221110120223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221110121267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110555060623 + 1110555060624.

It is an arithmetic number, because the mean of its divisors is an integer number (1110555060624).

Almost surely, 2^{2221110121247} is an apocalyptic number.

2221110121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221110121247 is an equidigital number, since it uses as much as digits as its factorization.

2221110121247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 2221110121247 its reverse (7421210111222), we get a palindrome (9642320232469).

The spelling of 2221110121247 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, two hundred forty-seven".