21201010201011 has 8 divisors (see below), whose sum is σ = 29032013969104. Its totient is φ = 13752006616800.

The previous prime is 21201010201003. The next prime is 21201010201031. The reversal of 21201010201011 is 11010201010212.

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

It is not a de Polignac number, because 21201010201011 - 2³ = 21201010201003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21201010201031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95500045840 + ... + 95500046061.

It is an arithmetic number, because the mean of its divisors is an integer number (3629001746138).

Almost surely, 2^{21201010201011} is an apocalyptic number.

21201010201011 is a deficient number, since it is larger than the sum of its proper divisors (7831003768093).

21201010201011 is a wasteful number, since it uses less digits than its factorization.

21201010201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191000091941.

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

Adding to 21201010201011 its reverse (11010201010212), we get a palindrome (32211211211223).

The spelling of 21201010201011 in words is "twenty-one trillion, two hundred one billion, ten million, two hundred one thousand, eleven".