2222222001012 has 192 divisors, whose sum is σ = 6630869226240. Its totient is φ = 637524283392.

The previous prime is 2222222000993. The next prime is 2222222001031. The reversal of 2222222001012 is 2101002222222.

2222222001012 is a `hidden beast` number, since 222 + 222 + 200 + 10 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (2222222000993) and next prime (2222222001031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2118808 + ... + 2988944.

It is an arithmetic number, because the mean of its divisors is an integer number (34535777220).

Almost surely, 2^{2222222001012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222222001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3315434613120).

2222222001012 is an abundant number, since it is smaller than the sum of its proper divisors (4408647225228).

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

2222222001012 is a wasteful number, since it uses less digits than its factorization.

2222222001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870287 (or 870279 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2222222001012 its reverse (2101002222222), we get a palindrome (4323224223234).

The spelling of 2222222001012 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, one thousand, twelve".