221201202110011 has 8 divisors (see below), whose sum is σ = 223994420241984. Its totient is φ = 218411035011720.

The previous prime is 221201202109967. The next prime is 221201202110017. The reversal of 221201202110011 is 110011202102122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221201202110011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221201202110017) 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, 762612505 + ... + 762902506.

It is an arithmetic number, because the mean of its divisors is an integer number (27999302530248).

Almost surely, 2^{221201202110011} is an apocalyptic number.

221201202110011 is a deficient number, since it is larger than the sum of its proper divisors (2793218131973).

221201202110011 is a wasteful number, since it uses less digits than its factorization.

221201202110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525516841.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221201202110011 its reverse (110011202102122), we get a palindrome (331212404212133).

The spelling of 221201202110011 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred two million, one hundred ten thousand, eleven".