1100102110021 has 6 divisors (see below), whose sum is σ = 1127588303666. Its totient is φ = 1073270349600.

The previous prime is 1100102109989. The next prime is 1100102110097. The reversal of 1100102110021 is 1200112010011.

It can be written as a sum of positive squares in 3 ways, for example, as 126497592225 + 973604517796 = 355665^2 + 986714^2 .

It is not a de Polignac number, because 1100102110021 - 2⁵ = 1100102109989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100102110621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327214890 + ... + 327218251.

Almost surely, 2^{1100102110021} is an apocalyptic number.

It is an amenable number.

1100102110021 is a deficient number, since it is larger than the sum of its proper divisors (27486193645).

1100102110021 is an frugal number, since it uses more digits than its factorization.

1100102110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654433223 (or 654433182 counting only the distinct ones).

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

Adding to 1100102110021 its reverse (1200112010011), we get a palindrome (2300214120032).

The spelling of 1100102110021 in words is "one trillion, one hundred billion, one hundred two million, one hundred ten thousand, twenty-one".