1202000110121 has 2 divisors, whose sum is σ = 1202000110122. Its totient is φ = 1202000110120.

The previous prime is 1202000110099. The next prime is 1202000110139. The reversal of 1202000110121 is 1210110002021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085422250896 + 116577859225 = 1041836^2 + 341435^2 .

It is an emirp because it is prime and its reverse (1210110002021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202000110121 - 2¹⁰ = 1202000109097 is a prime.

It is a super-2 number, since 2×1202000110121² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1202000110141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601000055060 + 601000055061.

It is an arithmetic number, because the mean of its divisors is an integer number (601000055061).

Almost surely, 2^{1202000110121} is an apocalyptic number.

It is an amenable number.

1202000110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202000110121 is an equidigital number, since it uses as much as digits as its factorization.

1202000110121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1202000110121 its reverse (1210110002021), we get a palindrome (2412110112142).

The spelling of 1202000110121 in words is "one trillion, two hundred two billion, one hundred ten thousand, one hundred twenty-one".