100001001021102 has 96 divisors (see below), whose sum is σ = 236605411130400. Its totient is φ = 30403947442176.

The previous prime is 100001001021091. The next prime is 100001001021139. The reversal of 100001001021102 is 201120100100001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10780503 + ... + 17782610.

It is an arithmetic number, because the mean of its divisors is an integer number (2464639699275).

Almost surely, 2^{100001001021102} is an apocalyptic number.

100001001021102 is an abundant number, since it is smaller than the sum of its proper divisors (136604410109298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100001001021102 is a wasteful number, since it uses less digits than its factorization.

100001001021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28563522 (or 28563519 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100001001021102 its reverse (201120100100001), we get a palindrome (301121101121103).

The spelling of 100001001021102 in words is "one hundred trillion, one billion, one million, twenty-one thousand, one hundred two".