2212221012 has 12 divisors (see below), whose sum is σ = 5161849056. Its totient is φ = 737407000.

The previous prime is 2212220987. The next prime is 2212221013. The reversal of 2212221012 is 2101222122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2212220982 and 2212221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212221013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92175864 + ... + 92175887.

It is an arithmetic number, because the mean of its divisors is an integer number (430154088).

Almost surely, 2^2212221012 is an apocalyptic number.

It is an amenable number.

2212221012 is an abundant number, since it is smaller than the sum of its proper divisors (2949628044).

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

2212221012 is a wasteful number, since it uses less digits than its factorization.

2212221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184351758 (or 184351756 counting only the distinct ones).

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

The square root of 2212221012 is about 47034.2536030923. The cubic root of 2212221012 is about 1302.9952654494.

Adding to 2212221012 its reverse (2101222122), we get a palindrome (4313443134).

It can be divided in two parts, 22122 and 21012, that added together give a palindrome (43134).

The spelling of 2212221012 in words is "two billion, two hundred twelve million, two hundred twenty-one thousand, twelve".