20020212212 has 96 divisors (see below), whose sum is σ = 47093889024. Its totient is φ = 7191907200.

The previous prime is 20020212211. The next prime is 20020212217. The reversal of 20020212212 is 21221202002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020212211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4366073 + ... + 4370655.

It is an arithmetic number, because the mean of its divisors is an integer number (490561344).

Almost surely, 2^20020212212 is an apocalyptic number.

20020212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020212212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23546944512).

20020212212 is an abundant number, since it is smaller than the sum of its proper divisors (27073676812).

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

20020212212 is a wasteful number, since it uses less digits than its factorization.

20020212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709 (or 5707 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20020212212 its reverse (21221202002), we get a palindrome (41241414214).

It can be divided in two parts, 20020 and 212212, that added together give a palindrome (232232).

The spelling of 20020212212 in words is "twenty billion, twenty million, two hundred twelve thousand, two hundred twelve".