221233212212201 has 8 divisors (see below), whose sum is σ = 254389109924544. Its totient is φ = 188465102777520.

The previous prime is 221233212212149. The next prime is 221233212212297. The reversal of 221233212212201 is 102212212332122.

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 221233212212201 - 2¹⁰ = 221233212211177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221233212212101) 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, 96947068190 + ... + 96947070471.

It is an arithmetic number, because the mean of its divisors is an integer number (31798638740568).

Almost surely, 2^{221233212212201} is an apocalyptic number.

It is an amenable number.

221233212212201 is a deficient number, since it is larger than the sum of its proper divisors (33155897712343).

221233212212201 is a wasteful number, since it uses less digits than its factorization.

221233212212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193894138831.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 221233212212201 its reverse (102212212332122), we get a palindrome (323445424544323).

The spelling of 221233212212201 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, two hundred twelve million, two hundred twelve thousand, two hundred one".