212604302220556 has 24 divisors (see below), whose sum is σ = 374776180825536. Its totient is φ = 105525405436800.

The previous prime is 212604302220553. The next prime is 212604302220577. The reversal of 212604302220556 is 655022203406212.

212604302220556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212604302220553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72627450 + ... + 75498046.

It is an arithmetic number, because the mean of its divisors is an integer number (15615674201064).

Almost surely, 2^{212604302220556} is an apocalyptic number.

It is an amenable number.

212604302220556 is a deficient number, since it is larger than the sum of its proper divisors (162171878604980).

212604302220556 is a wasteful number, since it uses less digits than its factorization.

212604302220556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005889 (or 3005887 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 212604302220556 its reverse (655022203406212), we get a palindrome (867626505626768).

The spelling of 212604302220556 in words is "two hundred twelve trillion, six hundred four billion, three hundred two million, two hundred twenty thousand, five hundred fifty-six".