100001220102 has 48 divisors (see below), whose sum is σ = 248649621792. Its totient is φ = 28453213440.

The previous prime is 100001220097. The next prime is 100001220107. The reversal of 100001220102 is 201022100001.

It is an interprime number because it is at equal distance from previous prime (100001220097) and next prime (100001220107).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001220107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1616233 + ... + 1676964.

It is an arithmetic number, because the mean of its divisors is an integer number (5180200454).

Almost surely, 2^100001220102 is an apocalyptic number.

100001220102 is an abundant number, since it is smaller than the sum of its proper divisors (148648401690).

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

100001220102 is a wasteful number, since it uses less digits than its factorization.

100001220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293453 (or 3293450 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100001220102 its reverse (201022100001), we get a palindrome (301023320103).

The spelling of 100001220102 in words is "one hundred billion, one million, two hundred twenty thousand, one hundred two".