2221210012 has 12 divisors (see below), whose sum is σ = 4442420080. Its totient is φ = 951947136.

The previous prime is 2221209997. The next prime is 2221210031. The reversal of 2221210012 is 2100121222.

It is a happy number.

2221210012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2221209974 and 2221210001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39664437 + ... + 39664492.

Almost surely, 2^2221210012 is an apocalyptic number.

It is an amenable number.

2221210012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2221210012 is a wasteful number, since it uses less digits than its factorization.

2221210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79328940 (or 79328938 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221210012 is about 47129.7147455827. The cubic root of 2221210012 is about 1304.7577168468.

Adding to 2221210012 its reverse (2100121222), we get a palindrome (4321331234).

The spelling of 2221210012 in words is "two billion, two hundred twenty-one million, two hundred ten thousand, twelve".