11020221544 has 32 divisors (see below), whose sum is σ = 21026174400. Its totient is φ = 5413358080.

The previous prime is 11020221533. The next prime is 11020221551. The reversal of 11020221544 is 44512202011.

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, 865464 + ... + 878104.

It is an arithmetic number, because the mean of its divisors is an integer number (657067950).

Almost surely, 2^11020221544 is an apocalyptic number.

It is an amenable number.

11020221544 is a deficient number, since it is larger than the sum of its proper divisors (10005952856).

11020221544 is a wasteful number, since it uses less digits than its factorization.

11020221544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553 (or 14549 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 11020221544 its reverse (44512202011), we get a palindrome (55532423555).

The spelling of 11020221544 in words is "eleven billion, twenty million, two hundred twenty-one thousand, five hundred forty-four".