2220022212 has 12 divisors (see below), whose sum is σ = 5180051856. Its totient is φ = 740007400.

The previous prime is 2220022201. The next prime is 2220022243. The reversal of 2220022212 is 2122200222.

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 = 2220022191 and 2220022200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92500914 + ... + 92500937.

It is an arithmetic number, because the mean of its divisors is an integer number (431670988).

Almost surely, 2^2220022212 is an apocalyptic number.

It is an amenable number.

2220022212 is an abundant number, since it is smaller than the sum of its proper divisors (2960029644).

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

2220022212 is a wasteful number, since it uses less digits than its factorization.

2220022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185001858 (or 185001856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2220022212 is about 47117.1116686921. Note that the first 3 decimals coincide. The cubic root of 2220022212 is about 1304.5251007589.

Adding to 2220022212 its reverse (2122200222), we get a palindrome (4342222434).

The spelling of 2220022212 in words is "two billion, two hundred twenty million, twenty-two thousand, two hundred twelve".