12212010224442 has 72 divisors (see below), whose sum is σ = 30780630784800. Its totient is φ = 3488989282128.

The previous prime is 12212010224399. The next prime is 12212010224443. The reversal of 12212010224442 is 24442201021221.

12212010224442 is a `hidden beast` number, since 1 + 2 + 212 + 0 + 1 + 0 + 2 + 2 + 4 + 442 = 666.

It is a super-2 number, since 2×12212010224442² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12212010224443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20127309 + ... + 20725167.

It is an arithmetic number, because the mean of its divisors is an integer number (427508760900).

Almost surely, 2^{12212010224442} is an apocalyptic number.

12212010224442 is an abundant number, since it is smaller than the sum of its proper divisors (18568620560358).

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

12212010224442 is a wasteful number, since it uses less digits than its factorization.

12212010224442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621040 (or 621030 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 12212010224442 its reverse (24442201021221), we get a palindrome (36654211245663).

The spelling of 12212010224442 in words is "twelve trillion, two hundred twelve billion, ten million, two hundred twenty-four thousand, four hundred forty-two".