221201241132001 has 16 divisors (see below), whose sum is σ = 238361219268480. Its totient is φ = 204061930611840.

The previous prime is 221201241131953. The next prime is 221201241132013. The reversal of 221201241132001 is 100231142102122.

It is a cyclic number.

It is not a de Polignac number, because 221201241132001 - 2⁷ = 221201241131873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221201241132061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213561996 + ... + 214595266.

It is an arithmetic number, because the mean of its divisors is an integer number (14897576204280).

Almost surely, 2^{221201241132001} is an apocalyptic number.

It is an amenable number.

221201241132001 is a deficient number, since it is larger than the sum of its proper divisors (17159978136479).

221201241132001 is a wasteful number, since it uses less digits than its factorization.

221201241132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043256.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 221201241132001 its reverse (100231142102122), we get a palindrome (321432383234123).

The spelling of 221201241132001 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred forty-one million, one hundred thirty-two thousand, one".