2221220020012 has 24 divisors (see below), whose sum is σ = 4442716171040. Its totient is φ = 951892266240.

The previous prime is 2221220020007. The next prime is 2221220020049. The reversal of 2221220020012 is 2100200221222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005437 + ... + 2909332.

Almost surely, 2^{2221220020012} is an apocalyptic number.

It is an amenable number.

2221220020012 is an abundant number, since it is smaller than the sum of its proper divisors (2221496151028).

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

2221220020012 is a wasteful number, since it uses less digits than its factorization.

2221220020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930921 (or 4930919 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2221220020012 its reverse (2100200221222), we get a palindrome (4321420241234).

The spelling of 2221220020012 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, twenty thousand, twelve".