201120001021001 has 32 divisors (see below), whose sum is σ = 221148869760000. Its totient is φ = 182129589227520.

The previous prime is 201120001020997. The next prime is 201120001021007. The reversal of 201120001021001 is 100120100021102.

It is a cyclic number.

It is not a de Polignac number, because 201120001021001 - 2² = 201120001020997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201120001021007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736569500 + ... + 736842498.

It is an arithmetic number, because the mean of its divisors is an integer number (6910902180000).

Almost surely, 2^{201120001021001} is an apocalyptic number.

It is an amenable number.

201120001021001 is a deficient number, since it is larger than the sum of its proper divisors (20028868738999).

201120001021001 is a wasteful number, since it uses less digits than its factorization.

201120001021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287609.

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

Adding to 201120001021001 its reverse (100120100021102), we get a palindrome (301240101042103).

The spelling of 201120001021001 in words is "two hundred one trillion, one hundred twenty billion, one million, twenty-one thousand, one".