212102100212 has 24 divisors (see below), whose sum is σ = 387559069632. Its totient is φ = 101376704000.

The previous prime is 212102100211. The next prime is 212102100241. The reversal of 212102100212 is 212001201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102100211) by changing a digit.

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, 572714 + ... + 867297.

It is an arithmetic number, because the mean of its divisors is an integer number (16148294568).

Almost surely, 2^212102100212 is an apocalyptic number.

It is an amenable number.

212102100212 is a deficient number, since it is larger than the sum of its proper divisors (175456969420).

212102100212 is a wasteful number, since it uses less digits than its factorization.

212102100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441639 (or 1441637 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212102100212 its reverse (212001201212), we get a palindrome (424103301424).

The spelling of 212102100212 in words is "two hundred twelve billion, one hundred two million, one hundred thousand, two hundred twelve".