212216612212 has 48 divisors (see below), whose sum is σ = 415113257664. Its totient is φ = 94088736000.

The previous prime is 212216612197. The next prime is 212216612233.

It is a happy number.

212216612212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10675162 + ... + 10695022.

It is an arithmetic number, because the mean of its divisors is an integer number (8648192868).

Almost surely, 2^212216612212 is an apocalyptic number.

212216612212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212216612212 is a deficient number, since it is larger than the sum of its proper divisors (202896645452).

212216612212 is a wasteful number, since it uses less digits than its factorization.

212216612212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25840 (or 25838 counting only the distinct ones).

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

It can be divided in two parts, 212216 and 612212, that added together give a palindrome (824428).

The spelling of 212216612212 in words is "two hundred twelve billion, two hundred sixteen million, six hundred twelve thousand, two hundred twelve".