212221301213112 has 16 divisors (see below), whose sum is σ = 530553253032840. Its totient is φ = 70740433737696.

The previous prime is 212221301213081. The next prime is 212221301213123. The reversal of 212221301213112 is 211312103122212.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 8842554217213 = 212221301213112 / (2 + 1 + 2 + 2 + 2 + 1 + 3 + 0 + 1 + 2 + 1 + 3 + 1 + 1 + 2).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4421277108583 + ... + 4421277108630.

Almost surely, 2^{212221301213112} is an apocalyptic number.

It is an amenable number.

212221301213112 is an abundant number, since it is smaller than the sum of its proper divisors (318331951819728).

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

212221301213112 is a wasteful number, since it uses less digits than its factorization.

212221301213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842554217222 (or 8842554217218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 212221301213112 its reverse (211312103122212), we get a palindrome (423533404335324).

The spelling of 212221301213112 in words is "two hundred twelve trillion, two hundred twenty-one billion, three hundred one million, two hundred thirteen thousand, one hundred twelve".