20022102122212 has 24 divisors (see below), whose sum is σ = 35051242770936. Its totient is φ = 10007461728768.

The previous prime is 20022102122147. The next prime is 20022102122299. The reversal of 20022102122212 is 21222120122002.

It can be written as a sum of positive squares in 4 ways, for example, as 5623613845056 + 14398488277156 = 2371416^2 + 3794534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20022102122212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259526908 + ... + 259604044.

It is an arithmetic number, because the mean of its divisors is an integer number (1460468448789).

Almost surely, 2^{20022102122212} is an apocalyptic number.

It is an amenable number.

20022102122212 is a deficient number, since it is larger than the sum of its proper divisors (15029140648724).

20022102122212 is a wasteful number, since it uses less digits than its factorization.

20022102122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99567 (or 99565 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20022102122212 its reverse (21222120122002), we get a palindrome (41244222244214).

The spelling of 20022102122212 in words is "twenty trillion, twenty-two billion, one hundred two million, one hundred twenty-two thousand, two hundred twelve".