110121101211209 has 4 divisors (see below), whose sum is σ = 120132110412240. Its totient is φ = 100110092010180.

The previous prime is 110121101211193. The next prime is 110121101211223. The reversal of 110121101211209 is 902112101121011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110121101211209 - 2⁴ = 110121101211193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110121101211259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005504600499 + ... + 5005504600520.

It is an arithmetic number, because the mean of its divisors is an integer number (30033027603060).

Almost surely, 2^{110121101211209} is an apocalyptic number.

It is an amenable number.

110121101211209 is a deficient number, since it is larger than the sum of its proper divisors (10011009201031).

110121101211209 is a wasteful number, since it uses less digits than its factorization.

110121101211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011009201030.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 110121101211209 in words is "one hundred ten trillion, one hundred twenty-one billion, one hundred one million, two hundred eleven thousand, two hundred nine".