212230553 has 4 divisors (see below), whose sum is σ = 212478480. Its totient is φ = 211982628.

The previous prime is 212230547. The next prime is 212230561. The reversal of 212230553 is 355032212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212230553 - 2⁸ = 212230297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212230523) by changing a digit.

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, 122675 + ... + 124392.

It is an arithmetic number, because the mean of its divisors is an integer number (53119620).

Almost surely, 2^212230553 is an apocalyptic number.

It is an amenable number.

212230553 is a deficient number, since it is larger than the sum of its proper divisors (247927).

212230553 is an equidigital number, since it uses as much as digits as its factorization.

212230553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247926.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 212230553 is about 14568.1348497328. The cubic root of 212230553 is about 596.4892693117.

Adding to 212230553 its reverse (355032212), we get a palindrome (567262765).

The spelling of 212230553 in words is "two hundred twelve million, two hundred thirty thousand, five hundred fifty-three".