12101109902 has 32 divisors (see below), whose sum is σ = 21342170304. Its totient is φ = 5037926400.

The previous prime is 12101109877. The next prime is 12101109907. The reversal of 12101109902 is 20990110121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101109907) 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 15 ways as a sum of consecutive naturals, for example, 88502 + ... + 178982.

It is an arithmetic number, because the mean of its divisors is an integer number (666942822).

Almost surely, 2^12101109902 is an apocalyptic number.

12101109902 is a deficient number, since it is larger than the sum of its proper divisors (9241060402).

12101109902 is a wasteful number, since it uses less digits than its factorization.

12101109902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90764.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 12101109902 in words is "twelve billion, one hundred one million, one hundred nine thousand, nine hundred two".