212212203103109 has 4 divisors (see below), whose sum is σ = 231504221567040. Its totient is φ = 192920184639180.

The previous prime is 212212203103067. The next prime is 212212203103139. The reversal of 212212203103109 is 901301302212212.

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-212212203103109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212203103139) 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, 9646009231949 + ... + 9646009231970.

It is an arithmetic number, because the mean of its divisors is an integer number (57876055391760).

Almost surely, 2^{212212203103109} is an apocalyptic number.

It is an amenable number.

212212203103109 is a deficient number, since it is larger than the sum of its proper divisors (19292018463931).

212212203103109 is a wasteful number, since it uses less digits than its factorization.

212212203103109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19292018463930.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 212212203103109 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred three million, one hundred three thousand, one hundred nine".