102001221003247 has 2 divisors, whose sum is σ = 102001221003248. Its totient is φ = 102001221003246.

The previous prime is 102001221003167. The next prime is 102001221003271. The reversal of 102001221003247 is 742300122100201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102001221003247 - 2¹⁵ = 102001220970479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001221003347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000610501623 + 51000610501624.

It is an arithmetic number, because the mean of its divisors is an integer number (51000610501624).

Almost surely, 2^{102001221003247} is an apocalyptic number.

102001221003247 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001221003247 is an equidigital number, since it uses as much as digits as its factorization.

102001221003247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 102001221003247 its reverse (742300122100201), we get a palindrome (844301343103448).

The spelling of 102001221003247 in words is "one hundred two trillion, one billion, two hundred twenty-one million, three thousand, two hundred forty-seven".