121111212219 has 8 divisors (see below), whose sum is σ = 162301320720. Its totient is φ = 80330955936.

The previous prime is 121111212197. The next prime is 121111212281. The reversal of 121111212219 is 912212111121.

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

It is not a de Polignac number, because 121111212219 - 2⁷ = 121111212091 is a prime.

It is a super-2 number, since 2×121111212219² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121111213219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102462364 + ... + 102463545.

It is an arithmetic number, because the mean of its divisors is an integer number (20287665090).

Almost surely, 2^121111212219 is an apocalyptic number.

121111212219 is a deficient number, since it is larger than the sum of its proper divisors (41190108501).

121111212219 is a wasteful number, since it uses less digits than its factorization.

121111212219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204926109.

The product of its digits is 144, while the sum is 24.

The spelling of 121111212219 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred twelve thousand, two hundred nineteen".