110002020121 has 32 divisors (see below), whose sum is σ = 133487769600. Its totient is φ = 88605031680.

The previous prime is 110002020109. The next prime is 110002020143. The reversal of 110002020121 is 121020200011.

It is a cyclic number.

It is not a de Polignac number, because 110002020121 - 2⁷ = 110002019993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110002020098 and 110002020107.

It is not an unprimeable number, because it can be changed into a prime (110002020521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24115681 + ... + 24120241.

It is an arithmetic number, because the mean of its divisors is an integer number (4171492800).

Almost surely, 2^110002020121 is an apocalyptic number.

It is an amenable number.

110002020121 is a deficient number, since it is larger than the sum of its proper divisors (23485749479).

110002020121 is a wasteful number, since it uses less digits than its factorization.

110002020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 110002020121 its reverse (121020200011), we get a palindrome (231022220132).

The spelling of 110002020121 in words is "one hundred ten billion, two million, twenty thousand, one hundred twenty-one".