1211300012 has 24 divisors (see below), whose sum is σ = 2284034256. Its totient is φ = 558767808.

The previous prime is 1211300009. The next prime is 1211300029. The reversal of 1211300012 is 2100031121.

It is a junction number, because it is equal to n+sod(n) for n = 1211299966 and 1211300002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117623 + ... + 127505.

It is an arithmetic number, because the mean of its divisors is an integer number (95168094).

Almost surely, 2^1211300012 is an apocalyptic number.

It is an amenable number.

1211300012 is a deficient number, since it is larger than the sum of its proper divisors (1072734244).

1211300012 is a wasteful number, since it uses less digits than its factorization.

1211300012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12257 (or 12255 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1211300012 is about 34803.7356040986. The cubic root of 1211300012 is about 1065.9837243355.

Adding to 1211300012 its reverse (2100031121), we get a palindrome (3311331133).

The spelling of 1211300012 in words is "one billion, two hundred eleven million, three hundred thousand, twelve".