201000012020221 has 8 divisors (see below), whose sum is σ = 214638500044800. Its totient is φ = 187808687537520.

The previous prime is 201000012020209. The next prime is 201000012020233. The reversal of 201000012020221 is 122020210000102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201000012020209) and next prime (201000012020233).

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 201000012020221 - 2²⁹ = 200999475149309 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 (201000012020251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111790884541 + ... + 111790886338.

It is an arithmetic number, because the mean of its divisors is an integer number (26829812505600).

Almost surely, 2^{201000012020221} is an apocalyptic number.

It is an amenable number.

201000012020221 is a deficient number, since it is larger than the sum of its proper divisors (13638488024579).

201000012020221 is a wasteful number, since it uses less digits than its factorization.

201000012020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223581770939.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201000012020221 its reverse (122020210000102), we get a palindrome (323020222020323).

The spelling of 201000012020221 in words is "two hundred one trillion, twelve million, twenty thousand, two hundred twenty-one".