243212214252 has 48 divisors (see below), whose sum is σ = 648888864512. Its totient is φ = 69454601280.

The previous prime is 243212214247. The next prime is 243212214257. The reversal of 243212214252 is 252412212342.

It is an interprime number because it is at equal distance from previous prime (243212214247) and next prime (243212214257).

It is a super-2 number, since 2×243212214252² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243212214257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550963 + ... + 888810.

Almost surely, 2^243212214252 is an apocalyptic number.

It is an amenable number.

243212214252 is an abundant number, since it is smaller than the sum of its proper divisors (405676650260).

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

243212214252 is a wasteful number, since it uses less digits than its factorization.

243212214252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441798 (or 1441796 counting only the distinct ones).

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

Adding to 243212214252 its reverse (252412212342), we get a palindrome (495624426594).

The spelling of 243212214252 in words is "two hundred forty-three billion, two hundred twelve million, two hundred fourteen thousand, two hundred fifty-two".