201000011221 has 8 divisors (see below), whose sum is σ = 213673802400. Its totient is φ = 188535704400.

The previous prime is 201000011213. The next prime is 201000011231. The reversal of 201000011221 is 122110000102.

201000011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201000011221 - 2³ = 201000011213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201000011198 and 201000011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000011231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52369111 + ... + 52372948.

It is an arithmetic number, because the mean of its divisors is an integer number (26709225300).

Almost surely, 2^201000011221 is an apocalyptic number.

It is an amenable number.

201000011221 is a deficient number, since it is larger than the sum of its proper divisors (12673791179).

201000011221 is a wasteful number, since it uses less digits than its factorization.

201000011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104742179.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201000011221 its reverse (122110000102), we get a palindrome (323110011323).

The spelling of 201000011221 in words is "two hundred one billion, eleven thousand, two hundred twenty-one".