212020210220 has 96 divisors (see below), whose sum is σ = 565667966976. Its totient is φ = 64936339200.

The previous prime is 212020210177. The next prime is 212020210247. The reversal of 212020210220 is 22012020212.

212020210220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 212020210195 and 212020210204.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1822526 + ... + 1935365.

It is an arithmetic number, because the mean of its divisors is an integer number (5892374656).

Almost surely, 2^212020210220 is an apocalyptic number.

212020210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020210220 is an abundant number, since it is smaller than the sum of its proper divisors (353647756756).

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

212020210220 is a wasteful number, since it uses less digits than its factorization.

212020210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757951 (or 3757949 counting only the distinct ones).

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

Adding to 212020210220 its reverse (22012020212), we get a palindrome (234032230432).

The spelling of 212020210220 in words is "two hundred twelve billion, twenty million, two hundred ten thousand, two hundred twenty".