212040210 has 16 divisors (see below), whose sum is σ = 508896576. Its totient is φ = 56544048.

The previous prime is 212040203. The next prime is 212040221. The reversal of 212040210 is 12040212.

It is a super-2 number, since 2×212040210² = 89922101313688200, which contains 22 as substring.

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, 3533974 + ... + 3534033.

It is an arithmetic number, because the mean of its divisors is an integer number (31806036).

Almost surely, 2^212040210 is an apocalyptic number.

212040210 is an abundant number, since it is smaller than the sum of its proper divisors (296856366).

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

212040210 is a wasteful number, since it uses less digits than its factorization.

212040210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068017.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 212040210 is about 14561.6005301615. The cubic root of 212040210 is about 596.3108917327.

Adding to 212040210 its reverse (12040212), we get a palindrome (224080422).

The spelling of 212040210 in words is "two hundred twelve million, forty thousand, two hundred ten".