11221524544 has 14 divisors (see below), whose sum is σ = 22267712894. Its totient is φ = 5610762240.

The previous prime is 11221524521. The next prime is 11221524557. The reversal of 11221524544 is 44542512211.

It can be written as a sum of positive squares in only one way, i.e., 10974657600 + 246866944 = 104760^2 + 15712^2 .

It is a super-2 number, since 2×11221524544² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87668097 + ... + 87668224.

It is an arithmetic number, because the mean of its divisors is an integer number (1590550921).

Almost surely, 2^11221524544 is an apocalyptic number.

It is an amenable number.

11221524544 is a deficient number, since it is larger than the sum of its proper divisors (11046188350).

11221524544 is an equidigital number, since it uses as much as digits as its factorization.

11221524544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175336333 (or 175336323 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The spelling of 11221524544 in words is "eleven billion, two hundred twenty-one million, five hundred twenty-four thousand, five hundred forty-four".