20012122212 has 24 divisors (see below), whose sum is σ = 46697599200. Its totient is φ = 6670329216.

The previous prime is 20012122177. The next prime is 20012122223. The reversal of 20012122212 is 21222121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012122191 and 20012122200.

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, 245964 + ... + 317052.

It is an arithmetic number, because the mean of its divisors is an integer number (1945733300).

Almost surely, 2^20012122212 is an apocalyptic number.

It is an amenable number.

20012122212 is an abundant number, since it is smaller than the sum of its proper divisors (26685476988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012122212 is a wasteful number, since it uses less digits than its factorization.

20012122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94555 (or 94553 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20012122212 its reverse (21222121002), we get a palindrome (41234243214).

The spelling of 20012122212 in words is "twenty billion, twelve million, one hundred twenty-two thousand, two hundred twelve".