11212020205 has 8 divisors (see below), whose sum is σ = 13455036000. Its totient is φ = 8969208336.

The previous prime is 11212020191. The next prime is 11212020229. The reversal of 11212020205 is 50202021211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11212020205 - 2¹¹ = 11212018157 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 125566 + ... + 195424.

It is an arithmetic number, because the mean of its divisors is an integer number (1681879500).

Almost surely, 2^11212020205 is an apocalyptic number.

It is an amenable number.

11212020205 is a deficient number, since it is larger than the sum of its proper divisors (2243015795).

11212020205 is an equidigital number, since it uses as much as digits as its factorization.

11212020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101963.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 11212020205 its reverse (50202021211), we get a palindrome (61414041416).

The spelling of 11212020205 in words is "eleven billion, two hundred twelve million, twenty thousand, two hundred five".