210011212220 has 24 divisors (see below), whose sum is σ = 441057633408. Its totient is φ = 83997992000.

The previous prime is 210011212207. The next prime is 210011212237. The reversal of 210011212220 is 22212110012.

210011212220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×210011212220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210011212195 and 210011212204.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 136211 + ... + 662250.

It is an arithmetic number, because the mean of its divisors is an integer number (18377401392).

Almost surely, 2^210011212220 is an apocalyptic number.

210011212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210011212220 is an abundant number, since it is smaller than the sum of its proper divisors (231046421188).

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

210011212220 is a wasteful number, since it uses less digits than its factorization.

210011212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811621 (or 811619 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210011212220 its reverse (22212110012), we get a palindrome (232223322232).

The spelling of 210011212220 in words is "two hundred ten billion, eleven million, two hundred twelve thousand, two hundred twenty".