1200120211212 has 24 divisors (see below), whose sum is σ = 3015686684976. Its totient is φ = 369267757248.

The previous prime is 1200120211193. The next prime is 1200120211219. The reversal of 1200120211212 is 2121120210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200120211191 and 1200120211200.

It is not an unprimeable number, because it can be changed into a prime (1200120211219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3846538983 + ... + 3846539294.

It is an arithmetic number, because the mean of its divisors is an integer number (125653611874).

Almost surely, 2^{1200120211212} is an apocalyptic number.

1200120211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200120211212 is an abundant number, since it is smaller than the sum of its proper divisors (1815566473764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200120211212 is a wasteful number, since it uses less digits than its factorization.

1200120211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693078297 (or 7693078295 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200120211212 its reverse (2121120210021), we get a palindrome (3321240421233).

The spelling of 1200120211212 in words is "one trillion, two hundred billion, one hundred twenty million, two hundred eleven thousand, two hundred twelve".