11021072225 has 24 divisors (see below), whose sum is σ = 13828177440. Its totient is φ = 8712725120.

The previous prime is 11021072177. The next prime is 11021072261. The reversal of 11021072225 is 52227012011.

It is not a de Polignac number, because 11021072225 - 2¹² = 11021068129 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021072225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1115909 + ... + 1125741.

It is an arithmetic number, because the mean of its divisors is an integer number (576174060).

Almost surely, 2^11021072225 is an apocalyptic number.

It is an amenable number.

11021072225 is a deficient number, since it is larger than the sum of its proper divisors (2807105215).

11021072225 is a wasteful number, since it uses less digits than its factorization.

11021072225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369 (or 10364 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 11021072225 its reverse (52227012011), we get a palindrome (63248084236).

The spelling of 11021072225 in words is "eleven billion, twenty-one million, seventy-two thousand, two hundred twenty-five".