22233231012 has 24 divisors (see below), whose sum is σ = 53083994656. Its totient is φ = 7238726208.

The previous prime is 22233231011. The next prime is 22233231019. The reversal of 22233231012 is 21013233222.

It is a happy number.

It is a super-2 number, since 2×22233231012² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22233231012.

It is not an unprimeable number, because it can be changed into a prime (22233231011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21543313 + ... + 21544344.

Almost surely, 2^22233231012 is an apocalyptic number.

It is an amenable number.

22233231012 is an abundant number, since it is smaller than the sum of its proper divisors (30850763644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22233231012 is a wasteful number, since it uses less digits than its factorization.

22233231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43087707 (or 43087705 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22233231012 its reverse (21013233222), we get a palindrome (43246464234).

The spelling of 22233231012 in words is "twenty-two billion, two hundred thirty-three million, two hundred thirty-one thousand, twelve".