2222220212 has 12 divisors (see below), whose sum is σ = 4117643460. Its totient is φ = 1045750656.

The previous prime is 2222220211. The next prime is 2222220223. The reversal of 2222220212 is 2120222222.

It can be written as a sum of positive squares in 2 ways, for example, as 902641936 + 1319578276 = 30044^2 + 36326^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222220211) 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, 16339787 + ... + 16339922.

It is an arithmetic number, because the mean of its divisors is an integer number (343136955).

Almost surely, 2^2222220212 is an apocalyptic number.

It is an amenable number.

2222220212 is a deficient number, since it is larger than the sum of its proper divisors (1895423248).

2222220212 is a wasteful number, since it uses less digits than its factorization.

2222220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32679730 (or 32679728 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2222220212 is about 47140.4307574719. The cubic root of 2222220212 is about 1304.9554869018.

Adding to 2222220212 its reverse (2120222222), we get a palindrome (4342442434).

The spelling of 2222220212 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twelve".