1202212112009 has 4 divisors (see below), whose sum is σ = 1202244825600. Its totient is φ = 1202179398420.

The previous prime is 1202212111999. The next prime is 1202212112047. The reversal of 1202212112009 is 9002112122021.

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 a de Polignac number, because none of the positive numbers 2^k-1202212112009 is a prime.

It is a super-2 number, since 2×1202212112009² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202212112099) 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, 16301609 + ... + 16375190.

It is an arithmetic number, because the mean of its divisors is an integer number (300561206400).

Almost surely, 2^{1202212112009} is an apocalyptic number.

It is an amenable number.

1202212112009 is a deficient number, since it is larger than the sum of its proper divisors (32713591).

1202212112009 is an equidigital number, since it uses as much as digits as its factorization.

1202212112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32713590.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1202212112009 in words is "one trillion, two hundred two billion, two hundred twelve million, one hundred twelve thousand, nine".