1200121120259 has 2 divisors, whose sum is σ = 1200121120260. Its totient is φ = 1200121120258.

The previous prime is 1200121120189. The next prime is 1200121120271. The reversal of 1200121120259 is 9520211210021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200121120259 - 2²⁸ = 1199852684803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200121140259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600060560129 + 600060560130.

It is an arithmetic number, because the mean of its divisors is an integer number (600060560130).

Almost surely, 2^{1200121120259} is an apocalyptic number.

1200121120259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200121120259 is an equidigital number, since it uses as much as digits as its factorization.

1200121120259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 1200121120259 in words is "one trillion, two hundred billion, one hundred twenty-one million, one hundred twenty thousand, two hundred fifty-nine".