212021310012 has 48 divisors (see below), whose sum is σ = 508206734112. Its totient is φ = 68747477760.

The previous prime is 212021309963. The next prime is 212021310013. The reversal of 212021310012 is 210013120212.

It is a super-2 number, since 2×212021310012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212021309973 and 212021310000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021310013) 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, 1908918 + ... + 2016930.

It is an arithmetic number, because the mean of its divisors is an integer number (10587640294).

Almost surely, 2^212021310012 is an apocalyptic number.

It is an amenable number.

212021310012 is an abundant number, since it is smaller than the sum of its proper divisors (296185424100).

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

212021310012 is a wasteful number, since it uses less digits than its factorization.

212021310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112478 (or 112476 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021310012 its reverse (210013120212), we get a palindrome (422034430224).

The spelling of 212021310012 in words is "two hundred twelve billion, twenty-one million, three hundred ten thousand, twelve".