11212101202009 has 4 divisors (see below), whose sum is σ = 11354026533760. Its totient is φ = 11070175870260.

The previous prime is 11212101202007. The next prime is 11212101202013. The reversal of 11212101202009 is 90020210121211.

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 not a de Polignac number, because 11212101202009 - 2¹ = 11212101202007 is a prime.

It is a super-2 number, since 2×11212101202009² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212101202007) 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 3 ways as a sum of consecutive naturals, for example, 70962665757 + ... + 70962665914.

It is an arithmetic number, because the mean of its divisors is an integer number (2838506633440).

Almost surely, 2^{11212101202009} is an apocalyptic number.

It is an amenable number.

11212101202009 is a deficient number, since it is larger than the sum of its proper divisors (141925331751).

11212101202009 is an equidigital number, since it uses as much as digits as its factorization.

11212101202009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141925331750.

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

The spelling of 11212101202009 in words is "eleven trillion, two hundred twelve billion, one hundred one million, two hundred two thousand, nine".