220112001121009 has 4 divisors (see below), whose sum is σ = 221073188899060. Its totient is φ = 219150813342960.

The previous prime is 220112001120971. The next prime is 220112001121081. The reversal of 220112001121009 is 900121100211022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99920575776784 + 120191425344225 = 9996028^2 + 10963185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220112001121009 is a prime.

It is a super-2 number, since 2×220112001121009² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220112001121099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480593888682 + ... + 480593889139.

It is an arithmetic number, because the mean of its divisors is an integer number (55268297224765).

Almost surely, 2^{220112001121009} is an apocalyptic number.

It is an amenable number.

220112001121009 is a deficient number, since it is larger than the sum of its proper divisors (961187778051).

220112001121009 is an equidigital number, since it uses as much as digits as its factorization.

220112001121009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961187778050.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 220112001121009 in words is "two hundred twenty trillion, one hundred twelve billion, one million, one hundred twenty-one thousand, nine".