11213021212231 has 8 divisors (see below), whose sum is σ = 11227478026880. Its totient is φ = 11198569302648.

The previous prime is 11213021212189. The next prime is 11213021212243. The reversal of 11213021212231 is 13221212031211.

It is a happy number.

11213021212231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11213021212231 - 2⁷ = 11213021212103 is a prime.

It is a super-2 number, since 2×11213021212231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213021212271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359740 + ... + 5806366.

It is an arithmetic number, because the mean of its divisors is an integer number (1403434753360).

Almost surely, 2^{11213021212231} is an apocalyptic number.

11213021212231 is a deficient number, since it is larger than the sum of its proper divisors (14456814649).

11213021212231 is an equidigital number, since it uses as much as digits as its factorization.

11213021212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452533.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11213021212231 its reverse (13221212031211), we get a palindrome (24434233243442).

The spelling of 11213021212231 in words is "eleven trillion, two hundred thirteen billion, twenty-one million, two hundred twelve thousand, two hundred thirty-one".