12011011212222 has 24 divisors (see below), whose sum is σ = 28389662865720. Its totient is φ = 3639700367280.

The previous prime is 12011011212143. The next prime is 12011011212247. The reversal of 12011011212222 is 22221211011021.

12011011212222 is a `hidden beast` number, since 120 + 110 + 1 + 1 + 212 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12011011212195 and 12011011212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30330836197 + ... + 30330836592.

It is an arithmetic number, because the mean of its divisors is an integer number (1182902619405).

Almost surely, 2^{12011011212222} is an apocalyptic number.

12011011212222 is an abundant number, since it is smaller than the sum of its proper divisors (16378651653498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011011212222 is a wasteful number, since it uses less digits than its factorization.

12011011212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60661672808 (or 60661672805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12011011212222 its reverse (22221211011021), we get a palindrome (34232222223243).

The spelling of 12011011212222 in words is "twelve trillion, eleven billion, eleven million, two hundred twelve thousand, two hundred twenty-two".