2111231212 has 12 divisors (see below), whose sum is σ = 3695138496. Its totient is φ = 1055477360.

The previous prime is 2111231141. The next prime is 2111231261. The reversal of 2111231212 is 2121321112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773 + ... + 65155.

It is an arithmetic number, because the mean of its divisors is an integer number (307928208).

Almost surely, 2^2111231212 is an apocalyptic number.

It is an amenable number.

2111231212 is a deficient number, since it is larger than the sum of its proper divisors (1583907284).

2111231212 is a wasteful number, since it uses less digits than its factorization.

2111231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69128 (or 69126 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 2111231212 is about 45948.1361101841. The cubic root of 2111231212 is about 1282.8580367226.

Adding to 2111231212 its reverse (2121321112), we get a palindrome (4232552324).

The spelling of 2111231212 in words is "two billion, one hundred eleven million, two hundred thirty-one thousand, two hundred twelve".