10211111202001 has 2 divisors, whose sum is σ = 10211111202002. Its totient is φ = 10211111202000.

The previous prime is 10211111201999. The next prime is 10211111202029. The reversal of 10211111202001 is 10020211111201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10048589342401 + 162521859600 = 3169951^2 + 403140^2 .

It is a cyclic number.

It is not a de Polignac number, because 10211111202001 - 2¹ = 10211111201999 is a prime.

Together with 10211111201999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10211111232001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105555601000 + 5105555601001.

It is an arithmetic number, because the mean of its divisors is an integer number (5105555601001).

Almost surely, 2^{10211111202001} is an apocalyptic number.

It is an amenable number.

10211111202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211111202001 is an equidigital number, since it uses as much as digits as its factorization.

10211111202001 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 10211111202001 its reverse (10020211111201), we get a palindrome (20231322313202).

The spelling of 10211111202001 in words is "ten trillion, two hundred eleven billion, one hundred eleven million, two hundred two thousand, one".