20102122212212 has 12 divisors (see below), whose sum is σ = 35184801247680. Its totient is φ = 10049321855736.

The previous prime is 20102122212209. The next prime is 20102122212311. The reversal of 20102122212212 is 21221222120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434786588 + ... + 434832819.

It is an arithmetic number, because the mean of its divisors is an integer number (2932066770640).

Almost surely, 2^{20102122212212} is an apocalyptic number.

It is an amenable number.

20102122212212 is a deficient number, since it is larger than the sum of its proper divisors (15082679035468).

20102122212212 is a wasteful number, since it uses less digits than its factorization.

20102122212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869625190 (or 869625188 counting only the distinct ones).

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

Adding to 20102122212212 its reverse (21221222120102), we get a palindrome (41323344332314).

The spelling of 20102122212212 in words is "twenty trillion, one hundred two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".