11212151144 has 16 divisors (see below), whose sum is σ = 21590967300. Its totient is φ = 5454559872.

The previous prime is 11212151131. The next prime is 11212151179. The reversal of 11212151144 is 44115121211.

11212151144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9942084100 + 1270067044 = 99710^2 + 35638^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18939149 + ... + 18939740.

Almost surely, 2^11212151144 is an apocalyptic number.

It is an amenable number.

11212151144 is a deficient number, since it is larger than the sum of its proper divisors (10378816156).

11212151144 is a wasteful number, since it uses less digits than its factorization.

11212151144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37878932 (or 37878928 counting only the distinct ones).

The product of its digits is 320, while the sum is 23.

Adding to 11212151144 its reverse (44115121211), we get a palindrome (55327272355).

The spelling of 11212151144 in words is "eleven billion, two hundred twelve million, one hundred fifty-one thousand, one hundred forty-four".