2001232120202 has 16 divisors (see below), whose sum is σ = 3488830816320. Its totient is φ = 843134113248.

The previous prime is 2001232120201. The next prime is 2001232120207. The reversal of 2001232120202 is 2020212321002.

It is not an unprimeable number, because it can be changed into a prime (2001232120201) 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, 1211398763 + ... + 1211400414.

It is an arithmetic number, because the mean of its divisors is an integer number (218051926020).

Almost surely, 2^{2001232120202} is an apocalyptic number.

2001232120202 is a deficient number, since it is larger than the sum of its proper divisors (1487598696118).

2001232120202 is a wasteful number, since it uses less digits than its factorization.

2001232120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422799245.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2001232120202 its reverse (2020212321002), we get a palindrome (4021444441204).

The spelling of 2001232120202 in words is "two trillion, one billion, two hundred thirty-two million, one hundred twenty thousand, two hundred two".