20100222121247 has 2 divisors, whose sum is σ = 20100222121248. Its totient is φ = 20100222121246.

The previous prime is 20100222121219. The next prime is 20100222121267. The reversal of 20100222121247 is 74212122200102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20100222121247 - 2²⁰ = 20100221072671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20100222121267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050111060623 + 10050111060624.

It is an arithmetic number, because the mean of its divisors is an integer number (10050111060624).

Almost surely, 2^{20100222121247} is an apocalyptic number.

20100222121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100222121247 is an equidigital number, since it uses as much as digits as its factorization.

20100222121247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 20100222121247 its reverse (74212122200102), we get a palindrome (94312344321349).

The spelling of 20100222121247 in words is "twenty trillion, one hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred forty-seven".