212931488024 has 32 divisors (see below), whose sum is σ = 407827742400. Its totient is φ = 104178385920.

The previous prime is 212931488023. The next prime is 212931488083. The reversal of 212931488024 is 420884139212.

It is a Cunningham number, because it is equal to 461445²-1.

It is a super-2 number, since 2×212931488024² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212931488023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1788104 + ... + 1903464.

It is an arithmetic number, because the mean of its divisors is an integer number (12744616950).

Almost surely, 2^212931488024 is an apocalyptic number.

It is an amenable number.

212931488024 is a deficient number, since it is larger than the sum of its proper divisors (194896254376).

212931488024 is a wasteful number, since it uses less digits than its factorization.

212931488024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120323 (or 120319 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 212931488024 in words is "two hundred twelve billion, nine hundred thirty-one million, four hundred eighty-eight thousand, twenty-four".