2211312212 has 72 divisors (see below), whose sum is σ = 4188011520. Its totient is φ = 1020029760.

The previous prime is 2211312197. The next prime is 2211312217. The reversal of 2211312212 is 2122131122.

2211312212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211312217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20287214 + ... + 20287322.

Almost surely, 2^2211312212 is an apocalyptic number.

It is an amenable number.

2211312212 is a deficient number, since it is larger than the sum of its proper divisors (1976699308).

2211312212 is a wasteful number, since it uses less digits than its factorization.

2211312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 248 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 2211312212 is about 47024.5915665410. The cubic root of 2211312212 is about 1302.8168136759.

Adding to 2211312212 its reverse (2122131122), we get a palindrome (4333443334).

The spelling of 2211312212 in words is "two billion, two hundred eleven million, three hundred twelve thousand, two hundred twelve".