212310021442 has 8 divisors (see below), whose sum is σ = 318467452176. Its totient is φ = 106154204052.

The previous prime is 212310021421. The next prime is 212310021527. The reversal of 212310021442 is 244120013212.

212310021442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10633 + ... + 651715.

It is an arithmetic number, because the mean of its divisors is an integer number (39808431522).

Almost surely, 2^212310021442 is an apocalyptic number.

212310021442 is a deficient number, since it is larger than the sum of its proper divisors (106157430734).

212310021442 is a wasteful number, since it uses less digits than its factorization.

212310021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806672.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212310021442 its reverse (244120013212), we get a palindrome (456430034654).

The spelling of 212310021442 in words is "two hundred twelve billion, three hundred ten million, twenty-one thousand, four hundred forty-two".