12102240205 has 8 divisors (see below), whose sum is σ = 15842932704. Its totient is φ = 8801629200.

The previous prime is 12102240197. The next prime is 12102240233. The reversal of 12102240205 is 50204220121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12102240205 - 2³ = 12102240197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110020311 + ... + 110020420.

It is an arithmetic number, because the mean of its divisors is an integer number (1980366588).

Almost surely, 2^12102240205 is an apocalyptic number.

It is an amenable number.

12102240205 is a deficient number, since it is larger than the sum of its proper divisors (3740692499).

12102240205 is a wasteful number, since it uses less digits than its factorization.

12102240205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220040747.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 12102240205 its reverse (50204220121), we get a palindrome (62306460326).

The spelling of 12102240205 in words is "twelve billion, one hundred two million, two hundred forty thousand, two hundred five".