211002341021 has 16 divisors (see below), whose sum is σ = 233320621824. Its totient is φ = 189799044864.

The previous prime is 211002340993. The next prime is 211002341023. The reversal of 211002341021 is 120143200112.

It is a cyclic number.

It is not a de Polignac number, because 211002341021 - 2¹⁸ = 211002078877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002341023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251840 + ... + 696726.

It is an arithmetic number, because the mean of its divisors is an integer number (14582538864).

Almost surely, 2^211002341021 is an apocalyptic number.

It is an amenable number.

211002341021 is a deficient number, since it is larger than the sum of its proper divisors (22318280803).

211002341021 is a wasteful number, since it uses less digits than its factorization.

211002341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446140.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211002341021 its reverse (120143200112), we get a palindrome (331145541133).

The spelling of 211002341021 in words is "two hundred eleven billion, two million, three hundred forty-one thousand, twenty-one".