11222131231012 has 24 divisors (see below), whose sum is σ = 21599388429696. Its totient is φ = 5069244221088.

The previous prime is 11222131230991. The next prime is 11222131231013. The reversal of 11222131231012 is 21013213122211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11222131231013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295850918 + ... + 2295855805.

It is an arithmetic number, because the mean of its divisors is an integer number (899974517904).

Almost surely, 2^{11222131231012} is an apocalyptic number.

It is an amenable number.

11222131231012 is a deficient number, since it is larger than the sum of its proper divisors (10377257198684).

11222131231012 is a wasteful number, since it uses less digits than its factorization.

11222131231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591706787 (or 4591706785 counting only the distinct ones).

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

Adding to 11222131231012 its reverse (21013213122211), we get a palindrome (32235344353223).

The spelling of 11222131231012 in words is "eleven trillion, two hundred twenty-two billion, one hundred thirty-one million, two hundred thirty-one thousand, twelve".