2223213212 has 48 divisors (see below), whose sum is σ = 4472907264. Its totient is φ = 957000000.

The previous prime is 2223213211. The next prime is 2223213217. The reversal of 2223213212 is 2123123222.

It is a happy number.

It is a super-3 number, since 3×2223213212³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223213211) 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, 91337 + ... + 113087.

It is an arithmetic number, because the mean of its divisors is an integer number (93185568).

Almost surely, 2^2223213212 is an apocalyptic number.

2223213212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2223213212 is an abundant number, since it is smaller than the sum of its proper divisors (2249694052).

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

2223213212 is a wasteful number, since it uses less digits than its factorization.

2223213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21890 (or 21888 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 2223213212 is about 47150.9619414069. The cubic root of 2223213212 is about 1305.1498312527.

Adding to 2223213212 its reverse (2123123222), we get a palindrome (4346336434).

The spelling of 2223213212 in words is "two billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred twelve".