212202004 has 12 divisors (see below), whose sum is σ = 424404064. Its totient is φ = 90943704.

The previous prime is 212201989. The next prime is 212202017. The reversal of 212202004 is 400202212.

212202004 = 2962² + 2963² + ... + 2985².

212202004 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 3789294 + ... + 3789349.

Almost surely, 2^212202004 is an apocalyptic number.

It is an amenable number.

212202004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212202004 is a wasteful number, since it uses less digits than its factorization.

212202004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578654 (or 7578652 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 212202004 is about 14567.1549727461. The cubic root of 212202004 is about 596.4625217714.

Adding to 212202004 its reverse (400202212), we get a palindrome (612404216).

The spelling of 212202004 in words is "two hundred twelve million, two hundred two thousand, four".