20011222200212 has 12 divisors (see below), whose sum is σ = 35380666055700. Its totient is φ = 9902460470016.

The previous prime is 20011222200163. The next prime is 20011222200223. The reversal of 20011222200212 is 21200222211002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13390666774276 + 6620555425936 = 3659326^2 + 2573044^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25787657087 + ... + 25787657862.

It is an arithmetic number, because the mean of its divisors is an integer number (2948388837975).

Almost surely, 2^{20011222200212} is an apocalyptic number.

It is an amenable number.

20011222200212 is a deficient number, since it is larger than the sum of its proper divisors (15369443855488).

20011222200212 is a wasteful number, since it uses less digits than its factorization.

20011222200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51575315050 (or 51575315048 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20011222200212 its reverse (21200222211002), we get a palindrome (41211444411214).

The spelling of 20011222200212 in words is "twenty trillion, eleven billion, two hundred twenty-two million, two hundred thousand, two hundred twelve".