21211002010011 has 8 divisors (see below), whose sum is σ = 30852366560064. Its totient is φ = 12855152733320.

The previous prime is 21211002009997. The next prime is 21211002010019. The reversal of 21211002010011 is 11001020011212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21211002010011 - 2¹⁴ = 21211001993627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21211002010019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321378818301 + ... + 321378818366.

It is an arithmetic number, because the mean of its divisors is an integer number (3856545820008).

Almost surely, 2^{21211002010011} is an apocalyptic number.

21211002010011 is a deficient number, since it is larger than the sum of its proper divisors (9641364550053).

21211002010011 is a wasteful number, since it uses less digits than its factorization.

21211002010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642757636681.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21211002010011 its reverse (11001020011212), we get a palindrome (32212022021223).

The spelling of 21211002010011 in words is "twenty-one trillion, two hundred eleven billion, two million, ten thousand, eleven".