211012001020001 has 4 divisors (see below), whose sum is σ = 211027674508992. Its totient is φ = 210996327531012.

The previous prime is 211012001019991. The next prime is 211012001020003. The reversal of 211012001020001 is 100020100210112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211012001020001 - 2³⁸ = 210737123113057 is a prime.

It is a super-3 number, since 3×211012001020001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012001020003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7836724301 + ... + 7836751226.

It is an arithmetic number, because the mean of its divisors is an integer number (52756918627248).

Almost surely, 2^{211012001020001} is an apocalyptic number.

It is an amenable number.

211012001020001 is a deficient number, since it is larger than the sum of its proper divisors (15673488991).

211012001020001 is a wasteful number, since it uses less digits than its factorization.

211012001020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15673488990.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211012001020001 its reverse (100020100210112), we get a palindrome (311032101230113).

The spelling of 211012001020001 in words is "two hundred eleven trillion, twelve billion, one million, twenty thousand, one".