212222022020 has 12 divisors (see below), whose sum is σ = 445666246284. Its totient is φ = 84888808800.

The previous prime is 212222021971. The next prime is 212222022031. The reversal of 212222022020 is 20220222212.

212222022020 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 2 ways, for example, as 132181690624 + 80040331396 = 363568^2 + 282914^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212222022020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5305550531 + ... + 5305550570.

It is an arithmetic number, because the mean of its divisors is an integer number (37138853857).

Almost surely, 2^212222022020 is an apocalyptic number.

212222022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222022020 is an abundant number, since it is smaller than the sum of its proper divisors (233444224264).

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

212222022020 is a wasteful number, since it uses less digits than its factorization.

212222022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611101110 (or 10611101108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 212222022020 its reverse (20220222212), we get a palindrome (232442244232).

The spelling of 212222022020 in words is "two hundred twelve billion, two hundred twenty-two million, twenty-two thousand, twenty".