201021200022133 has 4 divisors (see below), whose sum is σ = 201746908325740. Its totient is φ = 200295491718528.

The previous prime is 201021200022109. The next prime is 201021200022143. The reversal of 201021200022133 is 331220002120102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112623182333649 + 88398017688484 = 10612407^2 + 9402022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201021200022133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201021200022133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021200022143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362854151388 + ... + 362854151941.

It is an arithmetic number, because the mean of its divisors is an integer number (50436727081435).

Almost surely, 2^{201021200022133} is an apocalyptic number.

It is an amenable number.

201021200022133 is a deficient number, since it is larger than the sum of its proper divisors (725708303607).

201021200022133 is an equidigital number, since it uses as much as digits as its factorization.

201021200022133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725708303606.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201021200022133 its reverse (331220002120102), we get a palindrome (532241202142235).

The spelling of 201021200022133 in words is "two hundred one trillion, twenty-one billion, two hundred million, twenty-two thousand, one hundred thirty-three".