222202121112012 has 96 divisors (see below), whose sum is σ = 543279347968000. Its totient is φ = 70595953781760.

The previous prime is 222202121112011. The next prime is 222202121112029. The reversal of 222202121112012 is 210211121202222.

It is a self number, because there is not a number n which added to its sum of digits gives 222202121112012.

It is not an unprimeable number, because it can be changed into a prime (222202121112011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142512708 + ... + 144063444.

Almost surely, 2^{222202121112012} is an apocalyptic number.

It is an amenable number.

222202121112012 is an abundant number, since it is smaller than the sum of its proper divisors (321077226855988).

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

222202121112012 is a wasteful number, since it uses less digits than its factorization.

222202121112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556591 (or 1556589 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222202121112012 its reverse (210211121202222), we get a palindrome (432413242314234).

The spelling of 222202121112012 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred twenty-one million, one hundred twelve thousand, twelve".