1211200232012 has 24 divisors (see below), whose sum is σ = 2138449169472. Its totient is φ = 600215212800.

The previous prime is 1211200231981. The next prime is 1211200232057. The reversal of 1211200232012 is 2102320021121.

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, 14835062 + ... + 14916482.

It is an arithmetic number, because the mean of its divisors is an integer number (89102048728).

Almost surely, 2^{1211200232012} is an apocalyptic number.

It is an amenable number.

1211200232012 is a deficient number, since it is larger than the sum of its proper divisors (927248937460).

1211200232012 is a wasteful number, since it uses less digits than its factorization.

1211200232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114449 (or 114447 counting only the distinct ones).

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

Adding to 1211200232012 its reverse (2102320021121), we get a palindrome (3313520253133).

The spelling of 1211200232012 in words is "one trillion, two hundred eleven billion, two hundred million, two hundred thirty-two thousand, twelve".