222112020012 has 12 divisors (see below), whose sum is σ = 518261380056. Its totient is φ = 74037340000.

The previous prime is 222112019977. The next prime is 222112020071. The reversal of 222112020012 is 210020211222.

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

It is a super-2 number, since 2×222112020012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222112019973 and 222112020000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9254667489 + ... + 9254667512.

It is an arithmetic number, because the mean of its divisors is an integer number (43188448338).

Almost surely, 2^222112020012 is an apocalyptic number.

It is an amenable number.

222112020012 is an abundant number, since it is smaller than the sum of its proper divisors (296149360044).

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

222112020012 is a wasteful number, since it uses less digits than its factorization.

222112020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18509335008 (or 18509335006 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222112020012 its reverse (210020211222), we get a palindrome (432132231234).

The spelling of 222112020012 in words is "two hundred twenty-two billion, one hundred twelve million, twenty thousand, twelve".