11211002112001 has 2 divisors, whose sum is σ = 11211002112002. Its totient is φ = 11211002112000.

The previous prime is 11211002111971. The next prime is 11211002112029. The reversal of 11211002112001 is 10021120011211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8316308207601 + 2894693904400 = 2883801^2 + 1701380^2 .

It is an emirp because it is prime and its reverse (10021120011211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211002112001 - 2¹³ = 11211002103809 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211002112031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605501056000 + 5605501056001.

It is an arithmetic number, because the mean of its divisors is an integer number (5605501056001).

Almost surely, 2^{11211002112001} is an apocalyptic number.

It is an amenable number.

11211002112001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211002112001 is an equidigital number, since it uses as much as digits as its factorization.

11211002112001 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 13.

Adding to 11211002112001 its reverse (10021120011211), we get a palindrome (21232122123212).

The spelling of 11211002112001 in words is "eleven trillion, two hundred eleven billion, two million, one hundred twelve thousand, one".