20010211122212 has 12 divisors (see below), whose sum is σ = 35220284895516. Its totient is φ = 9947272580640.

The previous prime is 20010211122199. The next prime is 20010211122217. The reversal of 20010211122212 is 21222111201002.

It can be written as a sum of positive squares in 2 ways, for example, as 8583810074596 + 11426401047616 = 2929814^2 + 3380296^2 .

It is not an unprimeable number, because it can be changed into a prime (20010211122217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14458244339 + ... + 14458245722.

It is an arithmetic number, because the mean of its divisors is an integer number (2935023741293).

Almost surely, 2^{20010211122212} is an apocalyptic number.

It is an amenable number.

20010211122212 is a deficient number, since it is larger than the sum of its proper divisors (15210073773304).

20010211122212 is a wasteful number, since it uses less digits than its factorization.

20010211122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28916490238 (or 28916490236 counting only the distinct ones).

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

Adding to 20010211122212 its reverse (21222111201002), we get a palindrome (41232322323214).

The spelling of 20010211122212 in words is "twenty trillion, ten billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".