212015403222042 has 64 divisors (see below), whose sum is σ = 506190913597440. Its totient is φ = 57883153367424.

The previous prime is 212015403222013. The next prime is 212015403222053. The reversal of 212015403222042 is 240222304510212.

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 31 ways as a sum of consecutive naturals, for example, 110687067 + ... + 112586222.

It is an arithmetic number, because the mean of its divisors is an integer number (7909233024960).

Almost surely, 2^{212015403222042} is an apocalyptic number.

212015403222042 is an abundant number, since it is smaller than the sum of its proper divisors (294175510375398).

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

212015403222042 is a wasteful number, since it uses less digits than its factorization.

212015403222042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223274307.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 212015403222042 its reverse (240222304510212), we get a palindrome (452237707732254).

The spelling of 212015403222042 in words is "two hundred twelve trillion, fifteen billion, four hundred three million, two hundred twenty-two thousand, forty-two".