221000121101201 has 8 divisors (see below), whose sum is σ = 238048514329920. Its totient is φ = 203958639860112.

The previous prime is 221000121101171. The next prime is 221000121101231. The reversal of 221000121101201 is 102101121000122.

It is an interprime number because it is at equal distance from previous prime (221000121101171) and next prime (221000121101231).

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 221000121101201 - 2³⁸ = 220725243194257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221000121101231) 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, 1727930495 + ... + 1728058388.

It is an arithmetic number, because the mean of its divisors is an integer number (29756064291240).

Almost surely, 2^{221000121101201} is an apocalyptic number.

It is an amenable number.

221000121101201 is a deficient number, since it is larger than the sum of its proper divisors (17048393228719).

221000121101201 is a wasteful number, since it uses less digits than its factorization.

221000121101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455993815.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221000121101201 its reverse (102101121000122), we get a palindrome (323101242101323).

The spelling of 221000121101201 in words is "two hundred twenty-one trillion, one hundred twenty-one million, one hundred one thousand, two hundred one".