1012112222209 has 16 divisors (see below), whose sum is σ = 1106302893696. Its totient is φ = 918286761600.

The previous prime is 1012112222201. The next prime is 1012112222273. The reversal of 1012112222209 is 9022222112101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1012112222209 - 2³ = 1012112222201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012112222201) 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 15 ways as a sum of consecutive naturals, for example, 11468964 + ... + 11556874.

It is an arithmetic number, because the mean of its divisors is an integer number (69143930856).

Almost surely, 2^{1012112222209} is an apocalyptic number.

It is an amenable number.

1012112222209 is a deficient number, since it is larger than the sum of its proper divisors (94190671487).

1012112222209 is a wasteful number, since it uses less digits than its factorization.

1012112222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89976.

The product of its (nonzero) digits is 576, while the sum is 25.

It can be divided in two parts, 1012112 and 222209, that added together give a palindrome (1234321).

The spelling of 1012112222209 in words is "one trillion, twelve billion, one hundred twelve million, two hundred twenty-two thousand, two hundred nine".