11211021122012 has 6 divisors (see below), whose sum is σ = 19619286963528. Its totient is φ = 5605510561004.

The previous prime is 11211021122009. The next prime is 11211021122017. The reversal of 11211021122012 is 21022112011211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211021122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401377640248 + ... + 1401377640255.

It is an arithmetic number, because the mean of its divisors is an integer number (3269881160588).

Almost surely, 2^{11211021122012} is an apocalyptic number.

It is an amenable number.

11211021122012 is a deficient number, since it is larger than the sum of its proper divisors (8408265841516).

11211021122012 is a wasteful number, since it uses less digits than its factorization.

11211021122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802755280507 (or 2802755280505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11211021122012 its reverse (21022112011211), we get a palindrome (32233133133223).

The spelling of 11211021122012 in words is "eleven trillion, two hundred eleven billion, twenty-one million, one hundred twenty-two thousand, twelve".