19092121121 has 8 divisors (see below), whose sum is σ = 19509619584. Its totient is φ = 18675092880.

The previous prime is 19092121091. The next prime is 19092121123. The reversal of 19092121121 is 12112129091.

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

It is a cyclic number.

It is not a de Polignac number, because 19092121121 - 2³⁰ = 18018379297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19092121123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34835 + ... + 198488.

It is an arithmetic number, because the mean of its divisors is an integer number (2438702448).

Almost surely, 2^19092121121 is an apocalyptic number.

It is an amenable number.

19092121121 is a deficient number, since it is larger than the sum of its proper divisors (417498463).

19092121121 is a wasteful number, since it uses less digits than its factorization.

19092121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235111.

The product of its (nonzero) digits is 648, while the sum is 29.

It can be divided in two parts, 19092 and 121121, that multiplied together give a palindrome (2312442132).

The spelling of 19092121121 in words is "nineteen billion, ninety-two million, one hundred twenty-one thousand, one hundred twenty-one".