110120011021 has 4 divisors (see below), whose sum is σ = 112197747132. Its totient is φ = 108042274912.

The previous prime is 110120011003. The next prime is 110120011033. The reversal of 110120011021 is 120110021011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120110021011 = 971 ⋅123697241.

It can be written as a sum of positive squares in 2 ways, for example, as 49901304996 + 60218706025 = 223386^2 + 245395^2 .

It is a cyclic number.

It is not a de Polignac number, because 110120011021 - 2¹³ = 110120002829 is a prime.

It is a super-2 number, since 2×110120011021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110120010989 and 110120011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110120011091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038867976 + ... + 1038868081.

It is an arithmetic number, because the mean of its divisors is an integer number (28049436783).

Almost surely, 2^110120011021 is an apocalyptic number.

It is an amenable number.

110120011021 is a deficient number, since it is larger than the sum of its proper divisors (2077736111).

110120011021 is an equidigital number, since it uses as much as digits as its factorization.

110120011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077736110.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110120011021 its reverse (120110021011), we get a palindrome (230230032032).

The spelling of 110120011021 in words is "one hundred ten billion, one hundred twenty million, eleven thousand, twenty-one".