21211113211310 has 32 divisors (see below), whose sum is σ = 41719530995712. Its totient is φ = 7700425080480.

The previous prime is 21211113211307. The next prime is 21211113211357. The reversal of 21211113211310 is 1311231111212.

It is a super-2 number, since 2×21211113211310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 158770382 + ... + 158903921.

It is an arithmetic number, because the mean of its divisors is an integer number (1303735343616).

Almost surely, 2^{21211113211310} is an apocalyptic number.

21211113211310 is a deficient number, since it is larger than the sum of its proper divisors (20508417784402).

21211113211310 is a wasteful number, since it uses less digits than its factorization.

21211113211310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317674928.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 21211113211310 its reverse (1311231111212), we get a palindrome (22522344322522).

The spelling of 21211113211310 in words is "twenty-one trillion, two hundred eleven billion, one hundred thirteen million, two hundred eleven thousand, three hundred ten".