101112212009 has 8 divisors (see below), whose sum is σ = 107070999840. Its totient is φ = 95154647616.

The previous prime is 101112211999. The next prime is 101112212023. The reversal of 101112212009 is 900212211101.

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 101112212009 - 2¹² = 101112207913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101112214009) 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, 132899 + ... + 468920.

It is an arithmetic number, because the mean of its divisors is an integer number (13383874980).

Almost surely, 2^101112212009 is an apocalyptic number.

It is an amenable number.

101112212009 is a deficient number, since it is larger than the sum of its proper divisors (5958787831).

101112212009 is an equidigital number, since it uses as much as digits as its factorization.

101112212009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611719.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 101112212009 in words is "one hundred one billion, one hundred twelve million, two hundred twelve thousand, nine".