110021102021 has 4 divisors (see below), whose sum is σ = 110481441600. Its totient is φ = 109560762444.

The previous prime is 110021101999. The next prime is 110021102039. The reversal of 110021102021 is 120201120011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120201120011 = 7 ⋅17171588573.

It is a cyclic number.

It is not a de Polignac number, because 110021102021 - 2¹⁴ = 110021085637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110021101993 and 110021102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021102041) 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 3 ways as a sum of consecutive naturals, for example, 230169431 + ... + 230169908.

It is an arithmetic number, because the mean of its divisors is an integer number (27620360400).

Almost surely, 2^110021102021 is an apocalyptic number.

It is an amenable number.

110021102021 is a deficient number, since it is larger than the sum of its proper divisors (460339579).

110021102021 is an equidigital number, since it uses as much as digits as its factorization.

110021102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460339578.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 110021102021 its reverse (120201120011), we get a palindrome (230222222032).

The spelling of 110021102021 in words is "one hundred ten billion, twenty-one million, one hundred two thousand, twenty-one".