20111202222212 has 12 divisors (see below), whose sum is σ = 35640105204480. Its totient is φ = 9928315020936.

The previous prime is 20111202222203. The next prime is 20111202222227. The reversal of 20111202222212 is 21222220211102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31821522188 + ... + 31821522819.

It is an arithmetic number, because the mean of its divisors is an integer number (2970008767040).

Almost surely, 2^{20111202222212} is an apocalyptic number.

It is an amenable number.

20111202222212 is a deficient number, since it is larger than the sum of its proper divisors (15528902982268).

20111202222212 is a wasteful number, since it uses less digits than its factorization.

20111202222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63643045090 (or 63643045088 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20111202222212 its reverse (21222220211102), we get a palindrome (41333422433314).

The spelling of 20111202222212 in words is "twenty trillion, one hundred eleven billion, two hundred two million, two hundred twenty-two thousand, two hundred twelve".