212235028 has 6 divisors (see below), whose sum is σ = 371411306. Its totient is φ = 106117512.

The previous prime is 212234993. The next prime is 212235031. The reversal of 212235028 is 820532212.

It can be written as a sum of positive squares in only one way, i.e., 212051844 + 183184 = 14562^2 + 428^2 .

It is a super-2 number, since 2×212235028² = 90087414220321568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212234993 and 212235011.

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 as a sum of consecutive naturals, namely, 26529375 + ... + 26529382.

Almost surely, 2^212235028 is an apocalyptic number.

It is an amenable number.

212235028 is a deficient number, since it is larger than the sum of its proper divisors (159176278).

212235028 is a wasteful number, since it uses less digits than its factorization.

212235028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53058761 (or 53058759 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 212235028 is about 14568.2884375619. The cubic root of 212235028 is about 596.4934617189.

The spelling of 212235028 in words is "two hundred twelve million, two hundred thirty-five thousand, twenty-eight".