212440304042 has 8 divisors (see below), whose sum is σ = 318748228032. Its totient is φ = 106190894700.

The previous prime is 212440303987. The next prime is 212440304053. The reversal of 212440304042 is 240403044212.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14619584 + ... + 14634107.

It is an arithmetic number, because the mean of its divisors is an integer number (39843528504).

Almost surely, 2^212440304042 is an apocalyptic number.

212440304042 is a deficient number, since it is larger than the sum of its proper divisors (106307923990).

212440304042 is a wasteful number, since it uses less digits than its factorization.

212440304042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29257324.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 212440304042 its reverse (240403044212), we get a palindrome (452843348254).

The spelling of 212440304042 in words is "two hundred twelve billion, four hundred forty million, three hundred four thousand, forty-two".