21110002000201 has 2 divisors, whose sum is σ = 21110002000202. Its totient is φ = 21110002000200.

The previous prime is 21110002000127. The next prime is 21110002000267. The reversal of 21110002000201 is 10200020001112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17294777372601 + 3815224627600 = 4158699^2 + 1953260^2 .

It is a cyclic number.

It is not a de Polignac number, because 21110002000201 - 2²⁷ = 21109867782473 is a prime.

It is not a weakly prime, because it can be changed into another prime (21110002000301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555001000100 + 10555001000101.

It is an arithmetic number, because the mean of its divisors is an integer number (10555001000101).

Almost surely, 2^{21110002000201} is an apocalyptic number.

It is an amenable number.

21110002000201 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110002000201 is an equidigital number, since it uses as much as digits as its factorization.

21110002000201 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 10.

Adding to 21110002000201 its reverse (10200020001112), we get a palindrome (31310022001313).

The spelling of 21110002000201 in words is "twenty-one trillion, one hundred ten billion, two million, two hundred one", and thus it is an aban number.