221212013333032 has 32 divisors (see below), whose sum is σ = 414895208135400. Its totient is φ = 110573293517824.

The previous prime is 221212013333021. The next prime is 221212013333081. The reversal of 221212013333032 is 230333310212122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29473324376356 + 191738688956676 = 5428934^2 + 13846974^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838882548 + ... + 839146204.

Almost surely, 2^{221212013333032} is an apocalyptic number.

It is an amenable number.

221212013333032 is a deficient number, since it is larger than the sum of its proper divisors (193683194802368).

221212013333032 is a wasteful number, since it uses less digits than its factorization.

221212013333032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294285 (or 294281 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 221212013333032 its reverse (230333310212122), we get a palindrome (451545323545154).

The spelling of 221212013333032 in words is "two hundred twenty-one trillion, two hundred twelve billion, thirteen million, three hundred thirty-three thousand, thirty-two".