11223213221312 has 56 divisors (see below), whose sum is σ = 22350613125456. Its totient is φ = 5591568754688.

The previous prime is 11223213221303. The next prime is 11223213221413. The reversal of 11223213221312 is 21312231232211.

It is a super-2 number, since 2×11223213221312² (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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127525868 + ... + 127613844.

It is an arithmetic number, because the mean of its divisors is an integer number (399118091526).

Almost surely, 2^{11223213221312} is an apocalyptic number.

It is an amenable number.

11223213221312 is a deficient number, since it is larger than the sum of its proper divisors (11127399904144).

11223213221312 is an equidigital number, since it uses as much as digits as its factorization.

11223213221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95085 (or 95075 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 11223213221312 its reverse (21312231232211), we get a palindrome (32535444453523).

The spelling of 11223213221312 in words is "eleven trillion, two hundred twenty-three billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred twelve".