211011002021201 has 4 divisors (see below), whose sum is σ = 211011043307172. Its totient is φ = 211010960735232.

The previous prime is 211011002021173. The next prime is 211011002021207. The reversal of 211011002021201 is 102120200110112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106489005061201 + 104521996960000 = 10319351^2 + 10223600^2 .

It is a cyclic number.

It is not a de Polignac number, because 211011002021201 - 2⁴² = 206612955510097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211011002021207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11679056 + ... + 23630961.

It is an arithmetic number, because the mean of its divisors is an integer number (52752760826793).

Almost surely, 2^{211011002021201} is an apocalyptic number.

It is an amenable number.

211011002021201 is a deficient number, since it is larger than the sum of its proper divisors (41285971).

211011002021201 is an equidigital number, since it uses as much as digits as its factorization.

211011002021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41285970.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211011002021201 its reverse (102120200110112), we get a palindrome (313131202131313).

The spelling of 211011002021201 in words is "two hundred eleven trillion, eleven billion, two million, twenty-one thousand, two hundred one".