121002200011001 has 2 divisors, whose sum is σ = 121002200011002. Its totient is φ = 121002200011000.

The previous prime is 121002200010983. The next prime is 121002200011009. The reversal of 121002200011001 is 100110002200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81571586826601 + 39430613184400 = 9031699^2 + 6279380^2 .

It is an emirp because it is prime and its reverse (100110002200121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121002200011001 is a prime.

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 (121002200011009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501100005500 + 60501100005501.

It is an arithmetic number, because the mean of its divisors is an integer number (60501100005501).

Almost surely, 2^{121002200011001} is an apocalyptic number.

It is an amenable number.

121002200011001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002200011001 is an equidigital number, since it uses as much as digits as its factorization.

121002200011001 is an evil number, because the sum of its binary digits is even.

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

Adding to 121002200011001 its reverse (100110002200121), we get a palindrome (221112202211122).

The spelling of 121002200011001 in words is "one hundred twenty-one trillion, two billion, two hundred million, eleven thousand, one".