2121203031201 has 24 divisors (see below), whose sum is σ = 3107483683200. Its totient is φ = 1394052206400.

The previous prime is 2121203031133. The next prime is 2121203031203. The reversal of 2121203031201 is 1021303021212.

It is not a de Polignac number, because 2121203031201 - 2¹⁴ = 2121203014817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121203031203) 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, 5301741 + ... + 5687781.

It is an arithmetic number, because the mean of its divisors is an integer number (129478486800).

Almost surely, 2^{2121203031201} is an apocalyptic number.

It is an amenable number.

2121203031201 is a deficient number, since it is larger than the sum of its proper divisors (986280651999).

2121203031201 is a wasteful number, since it uses less digits than its factorization.

2121203031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394717 (or 394714 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2121203031201 its reverse (1021303021212), we get a palindrome (3142506052413).

The spelling of 2121203031201 in words is "two trillion, one hundred twenty-one billion, two hundred three million, thirty-one thousand, two hundred one".