212412020 has 24 divisors (see below), whose sum is σ = 469543200. Its totient is φ = 80492832.

The previous prime is 212412019. The next prime is 212412073. The reversal of 212412020 is 20214212.

It is a junction number, because it is equal to n+sod(n) for n = 212411986 and 212412004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279110 + ... + 279869.

It is an arithmetic number, because the mean of its divisors is an integer number (19564300).

Almost surely, 2^212412020 is an apocalyptic number.

212412020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212412020 is an abundant number, since it is smaller than the sum of its proper divisors (257131180).

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

212412020 is a wasteful number, since it uses less digits than its factorization.

212412020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559007 (or 559005 counting only the distinct ones).

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

The square root of 212412020 is about 14574.3617355958. The cubic root of 212412020 is about 596.6592295748.

Adding to 212412020 its reverse (20214212), we get a palindrome (232626232).

The spelling of 212412020 in words is "two hundred twelve million, four hundred twelve thousand, twenty".