2211123212 has 24 divisors (see below), whose sum is σ = 4008236400. Its totient is φ = 1066014656.

The previous prime is 2211123203. The next prime is 2211123217. The reversal of 2211123212 is 2123211122.

It is not an unprimeable number, because it can be changed into a prime (2211123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77339 + ... + 101997.

It is an arithmetic number, because the mean of its divisors is an integer number (167009850).

Almost surely, 2^2211123212 is an apocalyptic number.

It is an amenable number.

2211123212 is a deficient number, since it is larger than the sum of its proper divisors (1797113188).

2211123212 is a wasteful number, since it uses less digits than its factorization.

2211123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25465 (or 25463 counting only the distinct ones).

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

The square root of 2211123212 is about 47022.5819367674. The cubic root of 2211123212 is about 1302.7796955353.

Adding to 2211123212 its reverse (2123211122), we get a palindrome (4334334334).

The spelling of 2211123212 in words is "two billion, two hundred eleven million, one hundred twenty-three thousand, two hundred twelve".