221210040240201 has 8 divisors (see below), whose sum is σ = 297556868288160. Its totient is φ = 146168286176192.

The previous prime is 221210040240191. The next prime is 221210040240209. The reversal of 221210040240201 is 102042040012122.

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 221210040240201 - 2⁷ = 221210040240073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221210040240209) 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, 326268495591 + ... + 326268496268.

It is an arithmetic number, because the mean of its divisors is an integer number (37194608536020).

Almost surely, 2^{221210040240201} is an apocalyptic number.

It is an amenable number.

221210040240201 is a deficient number, since it is larger than the sum of its proper divisors (76346828047959).

221210040240201 is a wasteful number, since it uses less digits than its factorization.

221210040240201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652536991975.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221210040240201 its reverse (102042040012122), we get a palindrome (323252080252323).

The spelling of 221210040240201 in words is "two hundred twenty-one trillion, two hundred ten billion, forty million, two hundred forty thousand, two hundred one".