201010210100221 has 8 divisors (see below), whose sum is σ = 202823046528480. Its totient is φ = 199205038942992.

The previous prime is 201010210100213. The next prime is 201010210100251. The reversal of 201010210100221 is 122001012010102.

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 201010210100221 - 2³ = 201010210100213 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 (201010210100201) 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, 1916265075 + ... + 1916369968.

It is an arithmetic number, because the mean of its divisors is an integer number (25352880816060).

Almost surely, 2^{201010210100221} is an apocalyptic number.

It is an amenable number.

201010210100221 is a deficient number, since it is larger than the sum of its proper divisors (1812836428259).

201010210100221 is a wasteful number, since it uses less digits than its factorization.

201010210100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832635515.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201010210100221 its reverse (122001012010102), we get a palindrome (323011222110323).

The spelling of 201010210100221 in words is "two hundred one trillion, ten billion, two hundred ten million, one hundred thousand, two hundred twenty-one".