22122012222209 has 8 divisors (see below), whose sum is σ = 22737304886760. Its totient is φ = 21514869129600.

The previous prime is 22122012222203. The next prime is 22122012222229. The reversal of 22122012222209 is 90222221022122.

It can be written as a sum of positive squares in 4 ways, for example, as 875010576400 + 21247001645809 = 935420^2 + 4609447^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122012222209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122012222203) 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, 2037387482 + ... + 2037398339.

It is an arithmetic number, because the mean of its divisors is an integer number (2842163110845).

Almost surely, 2^{22122012222209} is an apocalyptic number.

It is an amenable number.

22122012222209 is a deficient number, since it is larger than the sum of its proper divisors (615292664551).

22122012222209 is an equidigital number, since it uses as much as digits as its factorization.

22122012222209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074785971.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 22122012222209 in words is "twenty-two trillion, one hundred twenty-two billion, twelve million, two hundred twenty-two thousand, two hundred nine".