212612216212 has 24 divisors (see below), whose sum is σ = 406040271840. Its totient is φ = 96607577760.

The previous prime is 212612216111. The next prime is 212612216221.

It is a happy number.

212612216212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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, 733023 + ... + 981094.

It is an arithmetic number, because the mean of its divisors is an integer number (16918344660).

Almost surely, 2^212612216212 is an apocalyptic number.

212612216212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212612216212 is a deficient number, since it is larger than the sum of its proper divisors (193428055628).

212612216212 is a wasteful number, since it uses less digits than its factorization.

212612216212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716951 (or 1716949 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

It can be divided in two parts, 212612 and 216212, that added together give a palindrome (428824).

The spelling of 212612216212 in words is "two hundred twelve billion, six hundred twelve million, two hundred sixteen thousand, two hundred twelve".