212241020 has 24 divisors (see below), whose sum is σ = 469165200. Its totient is φ = 80428032.

The previous prime is 212241019. The next prime is 212241031. The reversal of 212241020 is 20142212.

212241020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212240986 and 212241004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278885 + ... + 279644.

It is an arithmetic number, because the mean of its divisors is an integer number (19548550).

Almost surely, 2^212241020 is an apocalyptic number.

212241020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212241020 is an abundant number, since it is smaller than the sum of its proper divisors (256924180).

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

212241020 is a wasteful number, since it uses less digits than its factorization.

212241020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558557 (or 558555 counting only the distinct ones).

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

The square root of 212241020 is about 14568.4940882714. The cubic root of 212241020 is about 596.4990752365.

Adding to 212241020 its reverse (20142212), we get a palindrome (232383232).

The spelling of 212241020 in words is "two hundred twelve million, two hundred forty-one thousand, twenty".