221201000101 has 8 divisors (see below), whose sum is σ = 231546576384. Its totient is φ = 210916102320.

The previous prime is 221201000089. The next prime is 221201000117. The reversal of 221201000101 is 101000102122.

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 221201000101 - 2³⁷ = 83762046629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201000161) 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, 15162165 + ... + 15176746.

It is an arithmetic number, because the mean of its divisors is an integer number (28943322048).

Almost surely, 2^221201000101 is an apocalyptic number.

It is an amenable number.

221201000101 is a deficient number, since it is larger than the sum of its proper divisors (10345576283).

221201000101 is a wasteful number, since it uses less digits than its factorization.

221201000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30339251.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221201000101 its reverse (101000102122), we get a palindrome (322201102223).

The spelling of 221201000101 in words is "two hundred twenty-one billion, two hundred one million, one hundred one", and thus it is an aban number.