1201020012112 has 10 divisors (see below), whose sum is σ = 2326976273498. Its totient is φ = 600510006048.

The previous prime is 1201020012067. The next prime is 1201020012139. The reversal of 1201020012112 is 2112100201021.

It can be written as a sum of positive squares in only one way, i.e., 806590794816 + 394429217296 = 898104^2 + 628036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201020012092 and 1201020012101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37531875363 + ... + 37531875394.

Almost surely, 2^{1201020012112} is an apocalyptic number.

It is an amenable number.

1201020012112 is a deficient number, since it is larger than the sum of its proper divisors (1125956261386).

1201020012112 is an equidigital number, since it uses as much as digits as its factorization.

1201020012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75063750765 (or 75063750759 counting only the distinct ones).

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

Adding to 1201020012112 its reverse (2112100201021), we get a palindrome (3313120213133).

The spelling of 1201020012112 in words is "one trillion, two hundred one billion, twenty million, twelve thousand, one hundred twelve".