1201120012001 has 24 divisors (see below), whose sum is σ = 1570375732800. Its totient is φ = 894434533632.

The previous prime is 1201120011983. The next prime is 1201120012013. The reversal of 1201120012001 is 1002100211021.

It is not a de Polignac number, because 1201120012001 - 2³⁰ = 1200046270177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201120017001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22809551 + ... + 22862148.

It is an arithmetic number, because the mean of its divisors is an integer number (65432322200).

Almost surely, 2^{1201120012001} is an apocalyptic number.

It is an amenable number.

1201120012001 is a deficient number, since it is larger than the sum of its proper divisors (369255720799).

1201120012001 is a wasteful number, since it uses less digits than its factorization.

1201120012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45671753 (or 45671736 counting only the distinct ones).

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

Adding to 1201120012001 its reverse (1002100211021), we get a palindrome (2203220223022).

The spelling of 1201120012001 in words is "one trillion, two hundred one billion, one hundred twenty million, twelve thousand, one".