21202002001011 has 128 divisors (see below), whose sum is σ = 32729045336064. Its totient is φ = 12106621739520.

The previous prime is 21202002001009. The next prime is 21202002001013. The reversal of 21202002001011 is 11010020020212.

It is an interprime number because it is at equal distance from previous prime (21202002001009) and next prime (21202002001013).

It is not a de Polignac number, because 21202002001011 - 2¹ = 21202002001009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202002001013) 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 127 ways as a sum of consecutive naturals, for example, 3965211840 + ... + 3965217186.

It is an arithmetic number, because the mean of its divisors is an integer number (255695666688).

Almost surely, 2^{21202002001011} is an apocalyptic number.

21202002001011 is a deficient number, since it is larger than the sum of its proper divisors (11527043335053).

21202002001011 is a wasteful number, since it uses less digits than its factorization.

21202002001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21202002001011 its reverse (11010020020212), we get a palindrome (32212022021223).

The spelling of 21202002001011 in words is "twenty-one trillion, two hundred two billion, two million, one thousand, eleven".