1210121122247 has 2 divisors, whose sum is σ = 1210121122248. Its totient is φ = 1210121122246.

The previous prime is 1210121122169. The next prime is 1210121122253. The reversal of 1210121122247 is 7422211210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210121122247 - 2⁸ = 1210121121991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210121122447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605060561123 + 605060561124.

It is an arithmetic number, because the mean of its divisors is an integer number (605060561124).

Almost surely, 2^{1210121122247} is an apocalyptic number.

1210121122247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210121122247 is an equidigital number, since it uses as much as digits as its factorization.

1210121122247 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1210121122247 its reverse (7422211210121), we get a palindrome (8632332332368).

The spelling of 1210121122247 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred forty-seven".