201002021 has 8 divisors (see below), whose sum is σ = 219381600. Its totient is φ = 182640240.

The previous prime is 201001951. The next prime is 201002057. The reversal of 201002021 is 120200102.

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

It is a cyclic number.

It is not a de Polignac number, because 201002021 - 2¹⁰ = 201000997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002521) 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, 32690 + ... + 38348.

It is an arithmetic number, because the mean of its divisors is an integer number (27422700).

Almost surely, 2^201002021 is an apocalyptic number.

It is an amenable number.

201002021 is a deficient number, since it is larger than the sum of its proper divisors (18379579).

201002021 is a wasteful number, since it uses less digits than its factorization.

201002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8899.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 201002021 is about 14177.5181537531. The cubic root of 201002021 is about 585.7785635330.

Adding to 201002021 its reverse (120200102), we get a palindrome (321202123).

The spelling of 201002021 in words is "two hundred one million, two thousand, twenty-one".