2221012212 has 48 divisors (see below), whose sum is σ = 5441136960. Its totient is φ = 704132352.

The previous prime is 2221012169. The next prime is 2221012217. The reversal of 2221012212 is 2122101222.

It is a junction number, because it is equal to n+sod(n) for n = 2221012191 and 2221012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221012217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24313 + ... + 70944.

It is an arithmetic number, because the mean of its divisors is an integer number (113357020).

Almost surely, 2^2221012212 is an apocalyptic number.

It is an amenable number.

2221012212 is an abundant number, since it is smaller than the sum of its proper divisors (3220124748).

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

2221012212 is a wasteful number, since it uses less digits than its factorization.

2221012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95360 (or 95358 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2221012212 is about 47127.6162350696. The cubic root of 2221012212 is about 1304.7189858945.

Adding to 2221012212 its reverse (2122101222), we get a palindrome (4343113434).

The spelling of 2221012212 in words is "two billion, two hundred twenty-one million, twelve thousand, two hundred twelve".