1230111212 has 48 divisors (see below), whose sum is σ = 2460326400. Its totient is φ = 532983360.

The previous prime is 1230111203. The next prime is 1230111257. The reversal of 1230111212 is 2121110321.

1230111212 = T₃₃ + T₃₄ + ... + T₁₉₄₆.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94703 + ... + 106905.

It is an arithmetic number, because the mean of its divisors is an integer number (51256800).

Almost surely, 2^1230111212 is an apocalyptic number.

It is an amenable number.

1230111212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1230111212 is a wasteful number, since it uses less digits than its factorization.

1230111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12326 (or 12324 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1230111212 is about 35072.9413080797. The cubic root of 1230111212 is about 1071.4735606218.

Adding to 1230111212 its reverse (2121110321), we get a palindrome (3351221533).

The spelling of 1230111212 in words is "one billion, two hundred thirty million, one hundred eleven thousand, two hundred twelve".