100111221021102 has 32 divisors (see below), whose sum is σ = 205689785428512. Its totient is φ = 32459673688704.

The previous prime is 100111221021061. The next prime is 100111221021173. The reversal of 100111221021102 is 201120122111001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60504273 + ... + 62136860.

It is an arithmetic number, because the mean of its divisors is an integer number (6427805794641).

Almost surely, 2^{100111221021102} is an apocalyptic number.

100111221021102 is an abundant number, since it is smaller than the sum of its proper divisors (105578564407410).

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

100111221021102 is a wasteful number, since it uses less digits than its factorization.

100111221021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122644852.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100111221021102 its reverse (201120122111001), we get a palindrome (301231343132103).

The spelling of 100111221021102 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty-one million, twenty-one thousand, one hundred two".