221110110201201 has 32 divisors (see below), whose sum is σ = 319638367372800. Its totient is φ = 135147740592384.

The previous prime is 221110110201181. The next prime is 221110110201229. The reversal of 221110110201201 is 102102011011122.

It is a happy number.

It is not a de Polignac number, because 221110110201201 - 2⁹ = 221110110200689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221110110201901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115544091 + ... + 117442143.

It is an arithmetic number, because the mean of its divisors is an integer number (9988698980400).

Almost surely, 2^{221110110201201} is an apocalyptic number.

It is an amenable number.

221110110201201 is a deficient number, since it is larger than the sum of its proper divisors (98528257171599).

221110110201201 is a wasteful number, since it uses less digits than its factorization.

221110110201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918265.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221110110201201 its reverse (102102011011122), we get a palindrome (323212121212323).

The spelling of 221110110201201 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred ten million, two hundred one thousand, two hundred one".