22211448772 has 48 divisors (see below), whose sum is σ = 40959515520. Its totient is φ = 10518723072.

The previous prime is 22211448769. The next prime is 22211448781. The reversal of 22211448772 is 27784411222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4431804 + ... + 4436812.

It is an arithmetic number, because the mean of its divisors is an integer number (853323240).

Almost surely, 2^22211448772 is an apocalyptic number.

It is an amenable number.

22211448772 is a deficient number, since it is larger than the sum of its proper divisors (18748066748).

22211448772 is a wasteful number, since it uses less digits than its factorization.

22211448772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500 (or 5498 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

Adding to 22211448772 its reverse (27784411222), we get a palindrome (49995859994).

The spelling of 22211448772 in words is "twenty-two billion, two hundred eleven million, four hundred forty-eight thousand, seven hundred seventy-two".