221201120001 has 8 divisors (see below), whose sum is σ = 294937496640. Its totient is φ = 147466078352.

The previous prime is 221201119987. The next prime is 221201120003. The reversal of 221201120001 is 100021102122.

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 221201120001 - 2⁷ = 221201119873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221201120003) 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, 155215 + ... + 683003.

It is an arithmetic number, because the mean of its divisors is an integer number (36867187080).

Almost surely, 2^221201120001 is an apocalyptic number.

It is an amenable number.

221201120001 is a deficient number, since it is larger than the sum of its proper divisors (73736376639).

221201120001 is a wasteful number, since it uses less digits than its factorization.

221201120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667495.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221201120001 its reverse (100021102122), we get a palindrome (321222222123).

The spelling of 221201120001 in words is "two hundred twenty-one billion, two hundred one million, one hundred twenty thousand, one".