1121120202001 has 2 divisors, whose sum is σ = 1121120202002. Its totient is φ = 1121120202000.

The previous prime is 1121120201983. The next prime is 1121120202061. The reversal of 1121120202001 is 1002020211211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925826915601 + 195293286400 = 962199^2 + 441920^2 .

It is an emirp because it is prime and its reverse (1002020211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121120202001 - 2⁹ = 1121120201489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121120202061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560560101000 + 560560101001.

It is an arithmetic number, because the mean of its divisors is an integer number (560560101001).

Almost surely, 2^{1121120202001} is an apocalyptic number.

It is an amenable number.

1121120202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121120202001 is an equidigital number, since it uses as much as digits as its factorization.

1121120202001 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 1121120202001 its reverse (1002020211211), we get a palindrome (2123140413212).

The spelling of 1121120202001 in words is "one trillion, one hundred twenty-one billion, one hundred twenty million, two hundred two thousand, one".