101112121021209 has 8 divisors (see below), whose sum is σ = 142746523794720. Its totient is φ = 63442899464256.

The previous prime is 101112121021207. The next prime is 101112121021217. The reversal of 101112121021209 is 902120121211101.

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

It is not a de Polignac number, because 101112121021209 - 2¹ = 101112121021207 is a prime.

It is a super-2 number, since 2×101112121021209² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101112121021201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991295304079 + ... + 991295304180.

It is an arithmetic number, because the mean of its divisors is an integer number (17843315474340).

Almost surely, 2^{101112121021209} is an apocalyptic number.

It is an amenable number.

101112121021209 is a deficient number, since it is larger than the sum of its proper divisors (41634402773511).

101112121021209 is a wasteful number, since it uses less digits than its factorization.

101112121021209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982590608279.

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

The spelling of 101112121021209 in words is "one hundred one trillion, one hundred twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred nine".