201001033221 has 8 divisors (see below), whose sum is σ = 268656639360. Its totient is φ = 133673057952.

The previous prime is 201001033201. The next prime is 201001033243. The reversal of 201001033221 is 122330100102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201001033221 - 2⁹ = 201001032709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201001033221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001033201) 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, 81906285 + ... + 81908738.

It is an arithmetic number, because the mean of its divisors is an integer number (33582079920).

Almost surely, 2^201001033221 is an apocalyptic number.

It is an amenable number.

201001033221 is a deficient number, since it is larger than the sum of its proper divisors (67655606139).

201001033221 is a wasteful number, since it uses less digits than its factorization.

201001033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163815435.

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

Adding to 201001033221 its reverse (122330100102), we get a palindrome (323331133323).

It can be divided in two parts, 2010010 and 33221, that added together give a triangular number (2043231 = T₂₀₂₁).

The spelling of 201001033221 in words is "two hundred one billion, one million, thirty-three thousand, two hundred twenty-one".