2212318772 has 12 divisors (see below), whose sum is σ = 3873176580. Its totient is φ = 1105696896.

The previous prime is 2212318741. The next prime is 2212318777. The reversal of 2212318772 is 2778132122.

2212318772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1296288016 + 916030756 = 36004^2 + 30266^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212318777) 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, 104747 + ... + 124082.

It is an arithmetic number, because the mean of its divisors is an integer number (322764715).

Almost surely, 2^2212318772 is an apocalyptic number.

It is an amenable number.

2212318772 is a deficient number, since it is larger than the sum of its proper divisors (1660857808).

2212318772 is a wasteful number, since it uses less digits than its factorization.

2212318772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231250 (or 231248 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 2212318772 is about 47035.2928342112. The cubic root of 2212318772 is about 1303.0144586705.

The spelling of 2212318772 in words is "two billion, two hundred twelve million, three hundred eighteen thousand, seven hundred seventy-two".