11221415144 has 8 divisors (see below), whose sum is σ = 21040153410. Its totient is φ = 5610707568.

The previous prime is 11221415141. The next prime is 11221415147. The reversal of 11221415144 is 44151412211.

It is a happy number.

11221415144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11221415141) and next prime (11221415147).

It can be written as a sum of positive squares in only one way, i.e., 10335162244 + 886252900 = 101662^2 + 29770^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11221415141) by changing a digit.

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 as a sum of consecutive naturals, namely, 701338439 + ... + 701338454.

Almost surely, 2^11221415144 is an apocalyptic number.

It is an amenable number.

11221415144 is a deficient number, since it is larger than the sum of its proper divisors (9818738266).

11221415144 is a wasteful number, since it uses less digits than its factorization.

11221415144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402676899 (or 1402676895 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

Adding to 11221415144 its reverse (44151412211), we get a palindrome (55372827355).

The spelling of 11221415144 in words is "eleven billion, two hundred twenty-one million, four hundred fifteen thousand, one hundred forty-four".