212021410 has 8 divisors (see below), whose sum is σ = 381638556. Its totient is φ = 84808560.

The previous prime is 212021401. The next prime is 212021413. The reversal of 212021410 is 14120212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 179747649 + 32273761 = 13407^2 + 5681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212021413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10601061 + ... + 10601080.

Almost surely, 2^212021410 is an apocalyptic number.

212021410 is a deficient number, since it is larger than the sum of its proper divisors (169617146).

212021410 is a wasteful number, since it uses less digits than its factorization.

212021410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21202148.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212021410 is about 14560.9549824179. The cubic root of 212021410 is about 596.2932677545.

Adding to 212021410 its reverse (14120212), we get a palindrome (226141622).

The spelling of 212021410 in words is "two hundred twelve million, twenty-one thousand, four hundred ten".