212440252034 has 4 divisors (see below), whose sum is σ = 318660378054. Its totient is φ = 106220126016.

The previous prime is 212440252019. The next prime is 212440252039. The reversal of 212440252034 is 430252044212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 174160155625 + 38280096409 = 417325^2 + 195653^2 .

It is a super-2 number, since 2×212440252034² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212440251988 and 212440252006.

It is not an unprimeable number, because it can be changed into a prime (212440252039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53110063007 + ... + 53110063010.

Almost surely, 2^212440252034 is an apocalyptic number.

212440252034 is a deficient number, since it is larger than the sum of its proper divisors (106220126020).

212440252034 is a wasteful number, since it uses less digits than its factorization.

212440252034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106220126019.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 212440252034 its reverse (430252044212), we get a palindrome (642692296246).

The spelling of 212440252034 in words is "two hundred twelve billion, four hundred forty million, two hundred fifty-two thousand, thirty-four".