20112101220212 has 12 divisors (see below), whose sum is σ = 35196317009280. Its totient is φ = 10056010646136.

The previous prime is 20112101220163. The next prime is 20112101220223. The reversal of 20112101220212 is 21202210121102.

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, 8844038 + ... + 10883069.

It is an arithmetic number, because the mean of its divisors is an integer number (2933026417440).

Almost surely, 2^{20112101220212} is an apocalyptic number.

It is an amenable number.

20112101220212 is a deficient number, since it is larger than the sum of its proper divisors (15084215789068).

20112101220212 is a wasteful number, since it uses less digits than its factorization.

20112101220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19981990 (or 19981988 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112101220212 its reverse (21202210121102), we get a palindrome (41314311341314).

The spelling of 20112101220212 in words is "twenty trillion, one hundred twelve billion, one hundred one million, two hundred twenty thousand, two hundred twelve".