1200222011012 has 6 divisors (see below), whose sum is σ = 2100388519278. Its totient is φ = 600111005504.

The previous prime is 1200222010963. The next prime is 1200222011017. The reversal of 1200222011012 is 2101102220021.

It can be written as a sum of positive squares in only one way, i.e., 1035867986176 + 164354024836 = 1017776^2 + 405406^2 .

It is not an unprimeable number, because it can be changed into a prime (1200222011017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150027751373 + ... + 150027751380.

It is an arithmetic number, because the mean of its divisors is an integer number (350064753213).

Almost surely, 2^{1200222011012} is an apocalyptic number.

It is an amenable number.

1200222011012 is a deficient number, since it is larger than the sum of its proper divisors (900166508266).

1200222011012 is a wasteful number, since it uses less digits than its factorization.

1200222011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300055502757 (or 300055502755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200222011012 its reverse (2101102220021), we get a palindrome (3301324231033).

The spelling of 1200222011012 in words is "one trillion, two hundred billion, two hundred twenty-two million, eleven thousand, twelve".