20102100220212 has 48 divisors (see below), whose sum is σ = 49835014871040. Its totient is φ = 6288704242272.

The previous prime is 20102100220211. The next prime is 20102100220291. The reversal of 20102100220212 is 21202200120102.

It is a super-3 number, since 3×20102100220212³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20102100220191 and 20102100220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102100220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411971428 + ... + 412020219.

It is an arithmetic number, because the mean of its divisors is an integer number (1038229476480).

Almost surely, 2^{20102100220212} is an apocalyptic number.

It is an amenable number.

20102100220212 is an abundant number, since it is smaller than the sum of its proper divisors (29732914650828).

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

20102100220212 is a wasteful number, since it uses less digits than its factorization.

20102100220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823991780 (or 823991778 counting only the distinct ones).

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

Adding to 20102100220212 its reverse (21202200120102), we get a palindrome (41304300340314).

The spelling of 20102100220212 in words is "twenty trillion, one hundred two billion, one hundred million, two hundred twenty thousand, two hundred twelve".