212310530212 has 24 divisors (see below), whose sum is σ = 405974953440. Its totient is φ = 96348869760.

The previous prime is 212310530207. The next prime is 212310530251. The reversal of 212310530212 is 212035013212.

It is a super-2 number, since 2×212310530212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3870373 + ... + 3924844.

It is an arithmetic number, because the mean of its divisors is an integer number (16915623060).

Almost surely, 2^212310530212 is an apocalyptic number.

212310530212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212310530212 is a deficient number, since it is larger than the sum of its proper divisors (193664423228).

212310530212 is a wasteful number, since it uses less digits than its factorization.

212310530212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795851 (or 7795849 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 212310530212 its reverse (212035013212), we get a palindrome (424345543424).

The spelling of 212310530212 in words is "two hundred twelve billion, three hundred ten million, five hundred thirty thousand, two hundred twelve".