110021001201 has 24 divisors (see below), whose sum is σ = 164460314304. Its totient is φ = 70820174880.

The previous prime is 110021001161. The next prime is 110021001229. The reversal of 110021001201 is 102100120011.

It is a happy number.

It is not a de Polignac number, because 110021001201 - 2¹⁵ = 110020968433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (110021001271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1217421 + ... + 1304666.

It is an arithmetic number, because the mean of its divisors is an integer number (6852513096).

Almost surely, 2^110021001201 is an apocalyptic number.

It is an amenable number.

110021001201 is a deficient number, since it is larger than the sum of its proper divisors (54439313103).

110021001201 is a wasteful number, since it uses less digits than its factorization.

110021001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522261 (or 2522258 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 110021001201 its reverse (102100120011), we get a palindrome (212121121212).

The spelling of 110021001201 in words is "one hundred ten billion, twenty-one million, one thousand, two hundred one".