1200120121201 has 2 divisors, whose sum is σ = 1200120121202. Its totient is φ = 1200120121200.

The previous prime is 1200120121153. The next prime is 1200120121217. The reversal of 1200120121201 is 1021210210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010425029601 + 189695091600 = 1005199^2 + 435540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200120121201 - 2⁷ = 1200120121073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200120121231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600060060600 + 600060060601.

It is an arithmetic number, because the mean of its divisors is an integer number (600060060601).

Almost surely, 2^{1200120121201} is an apocalyptic number.

It is an amenable number.

1200120121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200120121201 is an equidigital number, since it uses as much as digits as its factorization.

1200120121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200120121201 its reverse (1021210210021), we get a palindrome (2221330331222).

The spelling of 1200120121201 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred twenty-one thousand, two hundred one".