1121102200121 has 2 divisors, whose sum is σ = 1121102200122. Its totient is φ = 1121102200120.

The previous prime is 1121102200103. The next prime is 1121102200181. The reversal of 1121102200121 is 1210022011211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 680730604096 + 440371596025 = 825064^2 + 663605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121102200121 - 2³⁴ = 1103922330937 is a prime.

It is a super-2 number, since 2×1121102200121² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121102200096 and 1121102200105.

It is not a weakly prime, because it can be changed into another prime (1121102200181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560551100060 + 560551100061.

It is an arithmetic number, because the mean of its divisors is an integer number (560551100061).

Almost surely, 2^{1121102200121} is an apocalyptic number.

It is an amenable number.

1121102200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121102200121 is an equidigital number, since it uses as much as digits as its factorization.

1121102200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1121102200121 its reverse (1210022011211), we get a palindrome (2331124211332).

The spelling of 1121102200121 in words is "one trillion, one hundred twenty-one billion, one hundred two million, two hundred thousand, one hundred twenty-one".