21211000201011 has 16 divisors (see below), whose sum is σ = 29065227277824. Its totient is φ = 13749233997024.

The previous prime is 21211000200979. The next prime is 21211000201021. The reversal of 21211000201011 is 11010200011212.

It is not a de Polignac number, because 21211000201011 - 2⁵ = 21211000200979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21211000201021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64088505 + ... + 64418618.

It is an arithmetic number, because the mean of its divisors is an integer number (1816576704864).

Almost surely, 2^{21211000201011} is an apocalyptic number.

21211000201011 is a deficient number, since it is larger than the sum of its proper divisors (7854227076813).

21211000201011 is a wasteful number, since it uses less digits than its factorization.

21211000201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128508650.

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

Adding to 21211000201011 its reverse (11010200011212), we get a palindrome (32221200212223).

The spelling of 21211000201011 in words is "twenty-one trillion, two hundred eleven billion, two hundred one thousand, eleven".