212012220310 has 96 divisors (see below), whose sum is σ = 426159885312. Its totient is φ = 75869640000.

The previous prime is 212012220257. The next prime is 212012220359. The reversal of 212012220310 is 13022210212.

It is a happy number.

It is a super-2 number, since 2×212012220310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54207255 + ... + 54211165.

It is an arithmetic number, because the mean of its divisors is an integer number (4439165472).

Almost surely, 2^212012220310 is an apocalyptic number.

212012220310 is an abundant number, since it is smaller than the sum of its proper divisors (214147665002).

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

212012220310 is a wasteful number, since it uses less digits than its factorization.

212012220310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642 (or 4631 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212012220310 its reverse (13022210212), we get a palindrome (225034430522).

The spelling of 212012220310 in words is "two hundred twelve billion, twelve million, two hundred twenty thousand, three hundred ten".