11211122122312 has 32 divisors (see below), whose sum is σ = 24109327221120. Its totient is φ = 4787667803520.

The previous prime is 11211122122297. The next prime is 11211122122339. The reversal of 11211122122312 is 21322122111211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356209548 + ... + 356241019.

It is an arithmetic number, because the mean of its divisors is an integer number (753416475660).

Almost surely, 2^{11211122122312} is an apocalyptic number.

It is an amenable number.

11211122122312 is an abundant number, since it is smaller than the sum of its proper divisors (12898205098808).

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

11211122122312 is a wasteful number, since it uses less digits than its factorization.

11211122122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712450861 (or 712450857 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

Adding to 11211122122312 its reverse (21322122111211), we get a palindrome (32533244233523).

The spelling of 11211122122312 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, three hundred twelve".