212004400030 has 32 divisors (see below), whose sum is σ = 398288176704. Its totient is φ = 81096677376.

The previous prime is 212004400021. The next prime is 212004400043. The reversal of 212004400030 is 30004400212.

It is a junction number, because it is equal to n+sod(n) for n = 212004399977 and 212004400013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957054 + ... + 1157566.

It is an arithmetic number, because the mean of its divisors is an integer number (12446505522).

Almost surely, 2^212004400030 is an apocalyptic number.

212004400030 is a deficient number, since it is larger than the sum of its proper divisors (186283776674).

212004400030 is a wasteful number, since it uses less digits than its factorization.

212004400030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205140.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 212004400030 its reverse (30004400212), we get a palindrome (242008800242).

The spelling of 212004400030 in words is "two hundred twelve billion, four million, four hundred thousand, thirty".