20102122212 has 24 divisors (see below), whose sum is σ = 48522364800. Its totient is φ = 6469648416.

The previous prime is 20102122211. The next prime is 20102122217. The reversal of 20102122212 is 21222120102.

It is a junction number, because it is equal to n+sod(n) for n = 20102122191 and 20102122200.

It is not an unprimeable number, because it can be changed into a prime (20102122211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28882012 + ... + 28882707.

It is an arithmetic number, because the mean of its divisors is an integer number (2021765200).

Almost surely, 2^20102122212 is an apocalyptic number.

It is an amenable number.

20102122212 is an abundant number, since it is smaller than the sum of its proper divisors (28420242588).

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

20102122212 is a wasteful number, since it uses less digits than its factorization.

20102122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57764755 (or 57764753 counting only the distinct ones).

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

Adding to 20102122212 its reverse (21222120102), we get a palindrome (41324242314).

The spelling of 20102122212 in words is "twenty billion, one hundred two million, one hundred twenty-two thousand, two hundred twelve".