11231222122 has 8 divisors (see below), whose sum is σ = 16906787172. Its totient is φ = 5595626400.

The previous prime is 11231222099. The next prime is 11231222129. The reversal of 11231222122 is 22122213211.

It can be written as a sum of positive squares in 2 ways, for example, as 8933841361 + 2297380761 = 94519^2 + 47931^2 .

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

It is a super-2 number, since 2×11231222122² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231222122.

It is not an unprimeable number, because it can be changed into a prime (11231222129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9991629 + ... + 9992752.

Almost surely, 2^11231222122 is an apocalyptic number.

11231222122 is a deficient number, since it is larger than the sum of its proper divisors (5675565050).

11231222122 is a wasteful number, since it uses less digits than its factorization.

11231222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19984664.

The product of its digits is 192, while the sum is 19.

Adding to 11231222122 its reverse (22122213211), we get a palindrome (33353435333).

The spelling of 11231222122 in words is "eleven billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-two".