222123000012 has 12 divisors (see below), whose sum is σ = 518287000056. Its totient is φ = 74041000000.

The previous prime is 222122999993. The next prime is 222123000013. The reversal of 222123000012 is 210000321222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 222122999955 and 222123000000.

It is not an unprimeable number, because it can be changed into a prime (222123000013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9255124989 + ... + 9255125012.

It is an arithmetic number, because the mean of its divisors is an integer number (43190583338).

Almost surely, 2^222123000012 is an apocalyptic number.

It is an amenable number.

222123000012 is an abundant number, since it is smaller than the sum of its proper divisors (296164000044).

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

222123000012 is a wasteful number, since it uses less digits than its factorization.

222123000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18510250008 (or 18510250006 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 222123000012 its reverse (210000321222), we get a palindrome (432123321234).

The spelling of 222123000012 in words is "two hundred twenty-two billion, one hundred twenty-three million, twelve", and thus it is an aban number.