222001002012 has 12 divisors (see below), whose sum is σ = 518002338056. Its totient is φ = 74000334000.

The previous prime is 222001001983. The next prime is 222001002019. The reversal of 222001002012 is 210200100222.

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

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 18500083501 = 222001002012 / (2 + 2 + 2 + 0 + 0 + 1 + 0 + 0 + 2 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001002019) 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, 9250041739 + ... + 9250041762.

Almost surely, 2^222001002012 is an apocalyptic number.

It is an amenable number.

222001002012 is an abundant number, since it is smaller than the sum of its proper divisors (296001336044).

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

222001002012 is a wasteful number, since it uses less digits than its factorization.

222001002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500083508 (or 18500083506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222001002012 its reverse (210200100222), we get a palindrome (432201102234).

The spelling of 222001002012 in words is "two hundred twenty-two billion, one million, two thousand, twelve".