11132212312221 has 128 divisors (see below), whose sum is σ = 20471764217856. Its totient is φ = 5192797870080.

The previous prime is 11132212312219. The next prime is 11132212312283. The reversal of 11132212312221 is 12221321223111.

It is not a de Polignac number, because 11132212312221 - 2¹ = 11132212312219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11132212312191 and 11132212312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132212312321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 940770921 + ... + 940782753.

It is an arithmetic number, because the mean of its divisors is an integer number (159935657952).

Almost surely, 2^{11132212312221} is an apocalyptic number.

11132212312221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11132212312221 is a deficient number, since it is larger than the sum of its proper divisors (9339551905635).

11132212312221 is a wasteful number, since it uses less digits than its factorization.

11132212312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20371.

The product of its digits is 576, while the sum is 24.

Adding to 11132212312221 its reverse (12221321223111), we get a palindrome (23353533535332).

The spelling of 11132212312221 in words is "eleven trillion, one hundred thirty-two billion, two hundred twelve million, three hundred twelve thousand, two hundred twenty-one".