112220001209 has 4 divisors (see below), whose sum is σ = 115840001280. Its totient is φ = 108600001140.

The previous prime is 112220001203. The next prime is 112220001301. The reversal of 112220001209 is 902100022211.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 902100022211 = 491 ⋅1837270921.

It is a cyclic number.

It is not a de Polignac number, because 112220001209 - 2⁴ = 112220001193 is a prime.

It is a super-2 number, since 2×112220001209² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112220001203) 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, 1809999989 + ... + 1810000050.

It is an arithmetic number, because the mean of its divisors is an integer number (28960000320).

Almost surely, 2^112220001209 is an apocalyptic number.

It is an amenable number.

112220001209 is a deficient number, since it is larger than the sum of its proper divisors (3620000071).

112220001209 is an equidigital number, since it uses as much as digits as its factorization.

112220001209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620000070.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 112220001209 in words is "one hundred twelve billion, two hundred twenty million, one thousand, two hundred nine".