1201101121109 has 4 divisors (see below), whose sum is σ = 1201416954816. Its totient is φ = 1200785287404.

The previous prime is 1201101121097. The next prime is 1201101121123. The reversal of 1201101121109 is 9011211011021.

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 1201101121109 - 2²⁰ = 1201100072533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201101121609) 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, 157911149 + ... + 157918754.

It is an arithmetic number, because the mean of its divisors is an integer number (300354238704).

Almost surely, 2^{1201101121109} is an apocalyptic number.

It is an amenable number.

1201101121109 is a deficient number, since it is larger than the sum of its proper divisors (315833707).

1201101121109 is an equidigital number, since it uses as much as digits as its factorization.

1201101121109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315833706.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 1201101121109 in words is "one trillion, two hundred one billion, one hundred one million, one hundred twenty-one thousand, one hundred nine".