110102102200021 has 4 divisors (see below), whose sum is σ = 110133195708844. Its totient is φ = 110071008691200.

The previous prime is 110102102200007. The next prime is 110102102200031. The reversal of 110102102200021 is 120002201201011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39623373984100 + 70478728215921 = 6294710^2 + 8395161^2 .

It is a cyclic number.

It is not a de Polignac number, because 110102102200021 - 2¹⁷ = 110102102068949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110102102199974 and 110102102200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110102102200031) 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, 15546749100 + ... + 15546756181.

It is an arithmetic number, because the mean of its divisors is an integer number (27533298927211).

Almost surely, 2^{110102102200021} is an apocalyptic number.

It is an amenable number.

110102102200021 is a deficient number, since it is larger than the sum of its proper divisors (31093508823).

110102102200021 is an equidigital number, since it uses as much as digits as its factorization.

110102102200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31093508822.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110102102200021 its reverse (120002201201011), we get a palindrome (230104303401032).

The spelling of 110102102200021 in words is "one hundred ten trillion, one hundred two billion, one hundred two million, two hundred thousand, twenty-one".