212021202404 has 24 divisors (see below), whose sum is σ = 422366349888. Its totient is φ = 92183131040.

The previous prime is 212021202403. The next prime is 212021202413. The reversal of 212021202404 is 404202120212.

It is not an unprimeable number, because it can be changed into a prime (212021202403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104752547 + ... + 104754570.

It is an arithmetic number, because the mean of its divisors is an integer number (17598597912).

Almost surely, 2^212021202404 is an apocalyptic number.

It is an amenable number.

212021202404 is a deficient number, since it is larger than the sum of its proper divisors (210345147484).

212021202404 is a wasteful number, since it uses less digits than its factorization.

212021202404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209507155 (or 209507153 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212021202404 its reverse (404202120212), we get a palindrome (616223322616).

The spelling of 212021202404 in words is "two hundred twelve billion, twenty-one million, two hundred two thousand, four hundred four".