100011220002121 has 2 divisors, whose sum is σ = 100011220002122. Its totient is φ = 100011220002120.

The previous prime is 100011220002103. The next prime is 100011220002149. The reversal of 100011220002121 is 121200022110001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99964103222025 + 47116780096 = 9998205^2 + 217064^2 .

It is a cyclic number.

It is not a de Polignac number, because 100011220002121 - 2³¹ = 100009072518473 is a prime.

It is not a weakly prime, because it can be changed into another prime (100011220005121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005610001060 + 50005610001061.

It is an arithmetic number, because the mean of its divisors is an integer number (50005610001061).

Almost surely, 2^{100011220002121} is an apocalyptic number.

It is an amenable number.

100011220002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100011220002121 is an equidigital number, since it uses as much as digits as its factorization.

100011220002121 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 100011220002121 its reverse (121200022110001), we get a palindrome (221211242112122).

The spelling of 100011220002121 in words is "one hundred trillion, eleven billion, two hundred twenty million, two thousand, one hundred twenty-one".