11215045412 has 12 divisors (see below), whose sum is σ = 20659294320. Its totient is φ = 5312389896.

The previous prime is 11215045411. The next prime is 11215045417. The reversal of 11215045412 is 21454051211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11215045411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73783118 + ... + 73783269.

It is an arithmetic number, because the mean of its divisors is an integer number (1721607860).

Almost surely, 2^11215045412 is an apocalyptic number.

It is an amenable number.

11215045412 is a deficient number, since it is larger than the sum of its proper divisors (9444248908).

11215045412 is a wasteful number, since it uses less digits than its factorization.

11215045412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147566410 (or 147566408 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 11215045412 its reverse (21454051211), we get a palindrome (32669096623).

The spelling of 11215045412 in words is "eleven billion, two hundred fifteen million, forty-five thousand, four hundred twelve".