212440533031 has 8 divisors (see below), whose sum is σ = 225063649440. Its totient is φ = 199831484928.

The previous prime is 212440533017. The next prime is 212440533079. The reversal of 212440533031 is 130335044212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 212440533031 - 2⁷ = 212440532903 is a prime.

It is a super-2 number, since 2×212440533031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212440533001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485971 + ... + 3546388.

It is an arithmetic number, because the mean of its divisors is an integer number (28132956180).

Almost surely, 2^212440533031 is an apocalyptic number.

212440533031 is a deficient number, since it is larger than the sum of its proper divisors (12623116409).

212440533031 is a wasteful number, since it uses less digits than its factorization.

212440533031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034153.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 212440533031 its reverse (130335044212), we get a palindrome (342775577243).

The spelling of 212440533031 in words is "two hundred twelve billion, four hundred forty million, five hundred thirty-three thousand, thirty-one".