110145204021 has 16 divisors (see below), whose sum is σ = 147138698880. Its totient is φ = 73291007040.

The previous prime is 110145203983. The next prime is 110145204049. The reversal of 110145204021 is 120402541011.

It is not a de Polignac number, because 110145204021 - 2¹¹ = 110145201973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110145204121) 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, 6399295 + ... + 6416483.

It is an arithmetic number, because the mean of its divisors is an integer number (9196168680).

Almost surely, 2^110145204021 is an apocalyptic number.

It is an amenable number.

110145204021 is a deficient number, since it is larger than the sum of its proper divisors (36993494859).

110145204021 is a wasteful number, since it uses less digits than its factorization.

110145204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21116.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 110145204021 its reverse (120402541011), we get a palindrome (230547745032).

The spelling of 110145204021 in words is "one hundred ten billion, one hundred forty-five million, two hundred four thousand, twenty-one".