22235440012 has 24 divisors (see below), whose sum is σ = 39740540112. Its totient is φ = 10881998400.

The previous prime is 22235439979. The next prime is 22235440027. The reversal of 22235440012 is 21004453222.

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, 35314 + ... + 213817.

It is an arithmetic number, because the mean of its divisors is an integer number (1655855838).

Almost surely, 2^22235440012 is an apocalyptic number.

It is an amenable number.

22235440012 is a deficient number, since it is larger than the sum of its proper divisors (17505100100).

22235440012 is a wasteful number, since it uses less digits than its factorization.

22235440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249609 (or 249607 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 22235440012 its reverse (21004453222), we get a palindrome (43239893234).

The spelling of 22235440012 in words is "twenty-two billion, two hundred thirty-five million, four hundred forty thousand, twelve".