20012120100212 has 12 divisors (see below), whose sum is σ = 35028414737316. Its totient is φ = 10004001603840.

The previous prime is 20012120100199. The next prime is 20012120100223. The reversal of 20012120100212 is 21200102121002.

It can be written as a sum of positive squares in 2 ways, for example, as 8804596300516 + 11207523799696 = 2967254^2 + 3347764^2 .

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, 514589693 + ... + 514628580.

It is an arithmetic number, because the mean of its divisors is an integer number (2919034561443).

Almost surely, 2^{20012120100212} is an apocalyptic number.

It is an amenable number.

20012120100212 is a deficient number, since it is larger than the sum of its proper divisors (15016294637104).

20012120100212 is a wasteful number, since it uses less digits than its factorization.

20012120100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029223138 (or 1029223136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012120100212 its reverse (21200102121002), we get a palindrome (41212222221214).

The spelling of 20012120100212 in words is "twenty trillion, twelve billion, one hundred twenty million, one hundred thousand, two hundred twelve".