121201003221 has 8 divisors (see below), whose sum is σ = 161610703680. Its totient is φ = 80795985792.

The previous prime is 121201003213. The next prime is 121201003229. The reversal of 121201003221 is 122300102121.

It is an interprime number because it is at equal distance from previous prime (121201003213) and next prime (121201003229).

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

It is not a de Polignac number, because 121201003221 - 2³ = 121201003213 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121201003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201003229) 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, 1109916 + ... + 1214213.

It is an arithmetic number, because the mean of its divisors is an integer number (20201337960).

Almost surely, 2^121201003221 is an apocalyptic number.

It is an amenable number.

121201003221 is a deficient number, since it is larger than the sum of its proper divisors (40409700459).

121201003221 is a wasteful number, since it uses less digits than its factorization.

121201003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341515.

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

Adding to 121201003221 its reverse (122300102121), we get a palindrome (243501105342).

The spelling of 121201003221 in words is "one hundred twenty-one billion, two hundred one million, three thousand, two hundred twenty-one".