212202031230 has 128 divisors (see below), whose sum is σ = 658913356800. Its totient is φ = 47588141952.

The previous prime is 212202031163. The next prime is 212202031243. The reversal of 212202031230 is 32130202212.

212202031230 is a `hidden beast` number, since 212 + 20 + 203 + 1 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 959040 + ... + 1159379.

It is an arithmetic number, because the mean of its divisors is an integer number (5147760600).

Almost surely, 2^212202031230 is an apocalyptic number.

212202031230 is an abundant number, since it is smaller than the sum of its proper divisors (446711325570).

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

212202031230 is a wasteful number, since it uses less digits than its factorization.

212202031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118495 (or 2118489 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212202031230 its reverse (32130202212), we get a palindrome (244332233442).

The spelling of 212202031230 in words is "two hundred twelve billion, two hundred two million, thirty-one thousand, two hundred thirty".