11525221412 has 24 divisors (see below), whose sum is σ = 20938411200. Its totient is φ = 5544223776.

The previous prime is 11525221399. The next prime is 11525221453. The reversal of 11525221412 is 21412252511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142712 + ... + 208367.

It is an arithmetic number, because the mean of its divisors is an integer number (872433800).

Almost surely, 2^11525221412 is an apocalyptic number.

It is an amenable number.

11525221412 is a deficient number, since it is larger than the sum of its proper divisors (9413189788).

11525221412 is a wasteful number, since it uses less digits than its factorization.

11525221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351395 (or 351393 counting only the distinct ones).

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

Adding to 11525221412 its reverse (21412252511), we get a palindrome (32937473923).

The spelling of 11525221412 in words is "eleven billion, five hundred twenty-five million, two hundred twenty-one thousand, four hundred twelve".