212112031230 has 48 divisors (see below), whose sum is σ = 601626855024. Its totient is φ = 51421098240.

The previous prime is 212112031213. The next prime is 212112031231. The reversal of 212112031230 is 32130211212.

212112031230 is a `hidden beast` number, since 21 + 211 + 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 not an unprimeable number, because it can be changed into a prime (212112031231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107126299 + ... + 107128278.

It is an arithmetic number, because the mean of its divisors is an integer number (12533892813).

Almost surely, 2^212112031230 is an apocalyptic number.

212112031230 is an abundant number, since it is smaller than the sum of its proper divisors (389514823794).

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

212112031230 is a wasteful number, since it uses less digits than its factorization.

212112031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214254601 (or 214254598 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212112031230 its reverse (32130211212), we get a palindrome (244242242442).

The spelling of 212112031230 in words is "two hundred twelve billion, one hundred twelve million, thirty-one thousand, two hundred thirty".