110101109921 has 8 divisors (see below), whose sum is σ = 126431896800. Its totient is φ = 94823922240.

The previous prime is 110101109903. The next prime is 110101109927. The reversal of 110101109921 is 129901101011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110101109921 is a prime.

It is a super-2 number, since 2×110101109921² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (110101109927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263399576 + ... + 263399993.

It is an arithmetic number, because the mean of its divisors is an integer number (15803987100).

Almost surely, 2^110101109921 is an apocalyptic number.

110101109921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110101109921 is a deficient number, since it is larger than the sum of its proper divisors (16330786879).

110101109921 is a wasteful number, since it uses less digits than its factorization.

110101109921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526799599.

The product of its (nonzero) digits is 162, while the sum is 26.

It can be divided in two parts, 110101 and 109921, that added together give a palindrome (220022).

The spelling of 110101109921 in words is "one hundred ten billion, one hundred one million, one hundred nine thousand, nine hundred twenty-one".