212310022012 has 12 divisors (see below), whose sum is σ = 405319133016. Its totient is φ = 96504555440.

The previous prime is 212310021941. The next prime is 212310022031. The reversal of 212310022012 is 210220013212.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 2412613843 + ... + 2412613930.

It is an arithmetic number, because the mean of its divisors is an integer number (33776594418).

Almost surely, 2^212310022012 is an apocalyptic number.

212310022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212310022012 is a deficient number, since it is larger than the sum of its proper divisors (193009111004).

212310022012 is a wasteful number, since it uses less digits than its factorization.

212310022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825227788 (or 4825227786 counting only the distinct ones).

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

Adding to 212310022012 its reverse (210220013212), we get a palindrome (422530035224).

The spelling of 212310022012 in words is "two hundred twelve billion, three hundred ten million, twenty-two thousand, twelve".