11222121122231 has 16 divisors (see below), whose sum is σ = 11317548024384. Its totient is φ = 11126895692544.

The previous prime is 11222121122209. The next prime is 11222121122243. The reversal of 11222121122231 is 13222112122211.

11222121122231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11222121122231 - 2¹⁰ = 11222121121207 is a prime.

It is a super-2 number, since 2×11222121122231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222121122197 and 11222121122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222121122131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791788661 + ... + 791802833.

It is an arithmetic number, because the mean of its divisors is an integer number (707346751524).

Almost surely, 2^{11222121122231} is an apocalyptic number.

11222121122231 is a deficient number, since it is larger than the sum of its proper divisors (95426902153).

11222121122231 is a wasteful number, since it uses less digits than its factorization.

11222121122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20810.

The product of its digits is 384, while the sum is 23.

Adding to 11222121122231 its reverse (13222112122211), we get a palindrome (24444233244442).

The spelling of 11222121122231 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-one".