110001101012021 has 4 divisors (see below), whose sum is σ = 113549523625344. Its totient is φ = 106452678398700.

The previous prime is 110001101011999. The next prime is 110001101012051. The reversal of 110001101012021 is 120210101100011.

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.

It is a de Polignac number, because none of the positive numbers 2^k-110001101012021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110001101011993 and 110001101012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001101012051) 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, 1774211306615 + ... + 1774211306676.

It is an arithmetic number, because the mean of its divisors is an integer number (28387380906336).

Almost surely, 2^{110001101012021} is an apocalyptic number.

It is an amenable number.

110001101012021 is a deficient number, since it is larger than the sum of its proper divisors (3548422613323).

110001101012021 is an equidigital number, since it uses as much as digits as its factorization.

110001101012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548422613322.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 110001101012021 its reverse (120210101100011), we get a palindrome (230211202112032).

The spelling of 110001101012021 in words is "one hundred ten trillion, one billion, one hundred one million, twelve thousand, twenty-one".