2220211212012 has 72 divisors (see below), whose sum is σ = 5744344686080. Its totient is φ = 722654563680.

The previous prime is 2220211212007. The next prime is 2220211212097. The reversal of 2220211212012 is 2102121120222.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5307837 + ... + 5710827.

Almost surely, 2^{2220211212012} 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 2220211212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872172343040).

2220211212012 is an abundant number, since it is smaller than the sum of its proper divisors (3524133474068).

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

2220211212012 is a wasteful number, since it uses less digits than its factorization.

2220211212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406603 (or 406598 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2220211212012 its reverse (2102121120222), we get a palindrome (4322332332234).

The spelling of 2220211212012 in words is "two trillion, two hundred twenty billion, two hundred eleven million, two hundred twelve thousand, twelve".