221010001110001 has 16 divisors (see below), whose sum is σ = 233292948940800. Its totient is φ = 208792151614800.

The previous prime is 221010001109999. The next prime is 221010001110023. The reversal of 221010001110001 is 100011100010122.

221010001110001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221010001110001 - 2¹ = 221010001109999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221010001110001.

It is not an unprimeable number, because it can be changed into a prime (221010001110061) 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, 813684546 + ... + 813956116.

It is an arithmetic number, because the mean of its divisors is an integer number (14580809308800).

Almost surely, 2^{221010001110001} is an apocalyptic number.

It is an amenable number.

221010001110001 is a deficient number, since it is larger than the sum of its proper divisors (12282947830799).

221010001110001 is a wasteful number, since it uses less digits than its factorization.

221010001110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391260.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 221010001110001 its reverse (100011100010122), we get a palindrome (321021101120123).

The spelling of 221010001110001 in words is "two hundred twenty-one trillion, ten billion, one million, one hundred ten thousand, one".