100121121102 has 16 divisors (see below), whose sum is σ = 205654195152. Its totient is φ = 32471714880.

The previous prime is 100121121071. The next prime is 100121121109. The reversal of 100121121102 is 201121121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121121109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225497799 + ... + 225498242.

It is an arithmetic number, because the mean of its divisors is an integer number (12853387197).

Almost surely, 2^100121121102 is an apocalyptic number.

100121121102 is an abundant number, since it is smaller than the sum of its proper divisors (105533074050).

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

100121121102 is a wasteful number, since it uses less digits than its factorization.

100121121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450996083.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100121121102 its reverse (201121121001), we get a palindrome (301242242103).

The spelling of 100121121102 in words is "one hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred two".