121321211103299 has 2 divisors, whose sum is σ = 121321211103300. Its totient is φ = 121321211103298.

The previous prime is 121321211103283. The next prime is 121321211103329. The reversal of 121321211103299 is 992301112123121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121321211103299 - 2⁴ = 121321211103283 is a prime.

It is not a weakly prime, because it can be changed into another prime (121321211103229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660605551649 + 60660605551650.

It is an arithmetic number, because the mean of its divisors is an integer number (60660605551650).

Almost surely, 2^{121321211103299} is an apocalyptic number.

121321211103299 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321211103299 is an equidigital number, since it uses as much as digits as its factorization.

121321211103299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 121321211103299 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two hundred eleven million, one hundred three thousand, two hundred ninety-nine".