212211323020 has 24 divisors (see below), whose sum is σ = 445653601344. Its totient is φ = 84882658176.

The previous prime is 212211322969. The next prime is 212211323033. The reversal of 212211323020 is 20323112212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145512 + ... + 1317808.

It is an arithmetic number, because the mean of its divisors is an integer number (18568900056).

Almost surely, 2^212211323020 is an apocalyptic number.

212211323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211323020 is an abundant number, since it is smaller than the sum of its proper divisors (233442278324).

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

212211323020 is a wasteful number, since it uses less digits than its factorization.

212211323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233889 (or 233887 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212211323020 its reverse (20323112212), we get a palindrome (232534435232).

The spelling of 212211323020 in words is "two hundred twelve billion, two hundred eleven million, three hundred twenty-three thousand, twenty".