201003221121 has 8 divisors (see below), whose sum is σ = 269932383840. Its totient is φ = 133038102912.

The previous prime is 201003221099. The next prime is 201003221137. The reversal of 201003221121 is 121122300102.

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

It is not a de Polignac number, because 201003221121 - 2⁷ = 201003220993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201003221121.

It is not an unprimeable number, because it can be changed into a prime (201003221161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241010640 + ... + 241011473.

It is an arithmetic number, because the mean of its divisors is an integer number (33741547980).

Almost surely, 2^201003221121 is an apocalyptic number.

It is an amenable number.

201003221121 is a deficient number, since it is larger than the sum of its proper divisors (68929162719).

201003221121 is a wasteful number, since it uses less digits than its factorization.

201003221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482022255.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201003221121 its reverse (121122300102), we get a palindrome (322125521223).

The spelling of 201003221121 in words is "two hundred one billion, three million, two hundred twenty-one thousand, one hundred twenty-one".