13211021221110 has 48 divisors (see below), whose sum is σ = 34349494916880. Its totient is φ = 3522852864960.

The previous prime is 13211021221109. The next prime is 13211021221133. The reversal of 13211021221110 is 1112212011231.

It is a happy number.

13211021221110 is a `hidden beast` number, since 1 + 321 + 1 + 0 + 212 + 21 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 1950661 + ... + 5497919.

It is an arithmetic number, because the mean of its divisors is an integer number (715614477435).

Almost surely, 2^{13211021221110} is an apocalyptic number.

13211021221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13211021221110 is an abundant number, since it is smaller than the sum of its proper divisors (21138473695770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13211021221110 is a wasteful number, since it uses less digits than its factorization.

13211021221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588653 (or 3588650 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 13211021221110 its reverse (1112212011231), we get a palindrome (14323233232341).

The spelling of 13211021221110 in words is "thirteen trillion, two hundred eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred ten".