212230423044 has 72 divisors (see below), whose sum is σ = 569666024928. Its totient is φ = 66390147840.

The previous prime is 212230422991. The next prime is 212230423051. The reversal of 212230423044 is 440324032212.

212230423044 is a `hidden beast` number, since 2 + 1 + 2 + 230 + 423 + 0 + 4 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 212230422999 and 212230423017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287322 + ... + 712049.

It is an arithmetic number, because the mean of its divisors is an integer number (7912028124).

Almost surely, 2^212230423044 is an apocalyptic number.

It is an amenable number.

212230423044 is an abundant number, since it is smaller than the sum of its proper divisors (357435601884).

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

212230423044 is a wasteful number, since it uses less digits than its factorization.

212230423044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999745 (or 999740 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 212230423044 its reverse (440324032212), we get a palindrome (652554455256).

The spelling of 212230423044 in words is "two hundred twelve billion, two hundred thirty million, four hundred twenty-three thousand, forty-four".