11221332213 has 32 divisors (see below), whose sum is σ = 18912199936. Its totient is φ = 5758967808.

The previous prime is 11221332211. The next prime is 11221332217. The reversal of 11221332213 is 31223312211.

It is not a de Polignac number, because 11221332213 - 2¹ = 11221332211 is a prime.

It is a super-2 number, since 2×11221332213² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11221332213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221332211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545356 + ... + 565557.

It is an arithmetic number, because the mean of its divisors is an integer number (591006248).

Almost surely, 2^11221332213 is an apocalyptic number.

11221332213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11221332213 is a deficient number, since it is larger than the sum of its proper divisors (7690867723).

11221332213 is a wasteful number, since it uses less digits than its factorization.

11221332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110973.

The product of its digits is 432, while the sum is 21.

Adding to 11221332213 its reverse (31223312211), we get a palindrome (42444644424).

The spelling of 11221332213 in words is "eleven billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred thirteen".