1000120211012 has 24 divisors (see below), whose sum is σ = 1949836488600. Its totient is φ = 445676910336.

The previous prime is 1000120211011. The next prime is 1000120211023. The reversal of 1000120211012 is 2101120210001.

It can be written as a sum of positive squares in 4 ways, for example, as 1527715396 + 998592495616 = 39086^2 + 999296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000120210984 and 1000120211002.

It is not an unprimeable number, because it can be changed into a prime (1000120211011) 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, 331603337 + ... + 331606352.

It is an arithmetic number, because the mean of its divisors is an integer number (81243187025).

Almost surely, 2^{1000120211012} is an apocalyptic number.

It is an amenable number.

1000120211012 is a deficient number, since it is larger than the sum of its proper divisors (949716277588).

1000120211012 is a wasteful number, since it uses less digits than its factorization.

1000120211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663209735 (or 663209733 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000120211012 its reverse (2101120210001), we get a palindrome (3101240421013).

The spelling of 1000120211012 in words is "one trillion, one hundred twenty million, two hundred eleven thousand, twelve".