211000210021001 has 32 divisors (see below), whose sum is σ = 220722589543680. Its totient is φ = 201455936281600.

The previous prime is 211000210020959. The next prime is 211000210021033. The reversal of 211000210021001 is 100120012000112.

It is a cyclic number.

It is not a de Polignac number, because 211000210021001 - 2³⁸ = 210725332114057 is a prime.

It is a super-2 number, since 2×211000210021001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211000210021201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839539166 + ... + 839790456.

It is an arithmetic number, because the mean of its divisors is an integer number (6897580923240).

Almost surely, 2^{211000210021001} is an apocalyptic number.

It is an amenable number.

211000210021001 is a deficient number, since it is larger than the sum of its proper divisors (9722379522679).

211000210021001 is a wasteful number, since it uses less digits than its factorization.

211000210021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252385.

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

Adding to 211000210021001 its reverse (100120012000112), we get a palindrome (311120222021113).

The spelling of 211000210021001 in words is "two hundred eleven trillion, two hundred ten million, twenty-one thousand, one".