2133201021 has 32 divisors (see below), whose sum is σ = 3460923648. Its totient is φ = 1140894720.

The previous prime is 2133200999. The next prime is 2133201067. The reversal of 2133201021 is 1201023312.

It is not a de Polignac number, because 2133201021 - 2⁵ = 2133200989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48111 + ... + 81123.

It is an arithmetic number, because the mean of its divisors is an integer number (108153864).

Almost surely, 2^2133201021 is an apocalyptic number.

2133201021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2133201021 is a deficient number, since it is larger than the sum of its proper divisors (1327722627).

2133201021 is a wasteful number, since it uses less digits than its factorization.

2133201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33221.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2133201021 is about 46186.5891899369. The cubic root of 2133201021 is about 1287.2925651420.

Adding to 2133201021 its reverse (1201023312), we get a palindrome (3334224333).

The spelling of 2133201021 in words is "two billion, one hundred thirty-three million, two hundred one thousand, twenty-one".