212122022020 has 48 divisors (see below), whose sum is σ = 446348654640. Its totient is φ = 84678967296.

The previous prime is 212122021967. The next prime is 212122022027. The reversal of 212122022020 is 20220221212.

212122022020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1875929344 + 210246092676 = 43312^2 + 458526^2 .

It is a super-3 number, since 3×212122022020³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212122021985 and 212122022003.

It is not an unprimeable number, because it can be changed into a prime (212122022027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42652254 + ... + 42657226.

It is an arithmetic number, because the mean of its divisors is an integer number (9298930305).

Almost surely, 2^212122022020 is an apocalyptic number.

212122022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122022020 is an abundant number, since it is smaller than the sum of its proper divisors (234226632620).

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

212122022020 is a wasteful number, since it uses less digits than its factorization.

212122022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824 (or 8822 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212122022020 its reverse (20220221212), we get a palindrome (232342243232).

The spelling of 212122022020 in words is "two hundred twelve billion, one hundred twenty-two million, twenty-two thousand, twenty".