212133310042 has 8 divisors (see below), whose sum is σ = 322558868916. Its totient is φ = 104613687072.

The previous prime is 212133310027. The next prime is 212133310057. The reversal of 212133310042 is 240013331212.

It is an interprime number because it is at equal distance from previous prime (212133310027) and next prime (212133310057).

It can be written as a sum of positive squares in 2 ways, for example, as 208886475681 + 3246834361 = 457041^2 + 56981^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 212133309995 and 212133310022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726483793 + ... + 726484084.

Almost surely, 2^212133310042 is an apocalyptic number.

212133310042 is a deficient number, since it is larger than the sum of its proper divisors (110425558874).

212133310042 is a wasteful number, since it uses less digits than its factorization.

212133310042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452967952.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212133310042 its reverse (240013331212), we get a palindrome (452146641254).

The spelling of 212133310042 in words is "two hundred twelve billion, one hundred thirty-three million, three hundred ten thousand, forty-two".