1220112101009 has 4 divisors (see below), whose sum is σ = 1237296778560. Its totient is φ = 1202927423460.

The previous prime is 1220112100997. The next prime is 1220112101023. The reversal of 1220112101009 is 9001012110221.

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 1220112101009 - 2¹² = 1220112096913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220112101099) 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 3 ways as a sum of consecutive naturals, for example, 8592338669 + ... + 8592338810.

It is an arithmetic number, because the mean of its divisors is an integer number (309324194640).

Almost surely, 2^{1220112101009} is an apocalyptic number.

It is an amenable number.

1220112101009 is a deficient number, since it is larger than the sum of its proper divisors (17184677551).

1220112101009 is an equidigital number, since it uses as much as digits as its factorization.

1220112101009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17184677550.

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

The spelling of 1220112101009 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred one thousand, nine".