110201221221 has 32 divisors (see below), whose sum is σ = 181092108288. Its totient is φ = 58048056000.

The previous prime is 110201221157. The next prime is 110201221259. The reversal of 110201221221 is 122122102011.

It is not a de Polignac number, because 110201221221 - 2⁶ = 110201221157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110201221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110201221271) 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, 79155 + ... + 476096.

It is an arithmetic number, because the mean of its divisors is an integer number (5659128384).

Almost surely, 2^110201221221 is an apocalyptic number.

It is an amenable number.

110201221221 is a deficient number, since it is larger than the sum of its proper divisors (70890887067).

110201221221 is a wasteful number, since it uses less digits than its factorization.

110201221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556001.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 110201221221 its reverse (122122102011), we get a palindrome (232323323232).

The spelling of 110201221221 in words is "one hundred ten billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty-one".