1200120110212 has 6 divisors (see below), whose sum is σ = 2100210192878. Its totient is φ = 600060055104.

The previous prime is 1200120110197. The next prime is 1200120110219. The reversal of 1200120110212 is 2120110210021.

It can be written as a sum of positive squares in only one way, i.e., 870145689856 + 329974420356 = 932816^2 + 574434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1200120110192 and 1200120110201.

It is not an unprimeable number, because it can be changed into a prime (1200120110219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150015013773 + ... + 150015013780.

Almost surely, 2^{1200120110212} is an apocalyptic number.

It is an amenable number.

1200120110212 is a deficient number, since it is larger than the sum of its proper divisors (900090082666).

1200120110212 is a wasteful number, since it uses less digits than its factorization.

1200120110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300030027557 (or 300030027555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200120110212 its reverse (2120110210021), we get a palindrome (3320230320233).

The spelling of 1200120110212 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred ten thousand, two hundred twelve".