110010101201021 has 4 divisors (see below), whose sum is σ = 125725829944032. Its totient is φ = 94294372458012.

The previous prime is 110010101200913. The next prime is 110010101201023. The reversal of 110010101201021 is 120102101010011.

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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110010101201021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110010101200993 and 110010101201011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110010101201023) 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, 7857864371495 + ... + 7857864371508.

It is an arithmetic number, because the mean of its divisors is an integer number (31431457486008).

Almost surely, 2^{110010101201021} is an apocalyptic number.

It is an amenable number.

110010101201021 is a deficient number, since it is larger than the sum of its proper divisors (15715728743011).

110010101201021 is an equidigital number, since it uses as much as digits as its factorization.

110010101201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715728743010.

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

Adding to 110010101201021 its reverse (120102101010011), we get a palindrome (230112202211032).

The spelling of 110010101201021 in words is "one hundred ten trillion, ten billion, one hundred one million, two hundred one thousand, twenty-one".