21133012201 has 16 divisors (see below), whose sum is σ = 25110507520. Its totient is φ = 17403549840.

The previous prime is 21133012183. The next prime is 21133012207. The reversal of 21133012201 is 10221033112.

It is a cyclic number.

It is not a de Polignac number, because 21133012201 - 2¹¹ = 21133010153 is a prime.

It is a super-2 number, since 2×21133012201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21133012207) 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 15 ways as a sum of consecutive naturals, for example, 320151 + ... + 380476.

It is an arithmetic number, because the mean of its divisors is an integer number (1569406720).

Almost surely, 2^21133012201 is an apocalyptic number.

It is an amenable number.

21133012201 is a deficient number, since it is larger than the sum of its proper divisors (3977495319).

21133012201 is a wasteful number, since it uses less digits than its factorization.

21133012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700804.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21133012201 its reverse (10221033112), we get a palindrome (31354045313).

The spelling of 21133012201 in words is "twenty-one billion, one hundred thirty-three million, twelve thousand, two hundred one".