212212102201012 has 48 divisors (see below), whose sum is σ = 389973408627600. Its totient is φ = 100952850493440.

The previous prime is 212212102201007. The next prime is 212212102201031. The reversal of 212212102201012 is 210102201212212.

It can be written as a sum of positive squares in 8 ways, for example, as 2263478124196 + 209948624076816 = 1504486^2 + 14489604^2 .

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, 98517087 + ... + 100648102.

It is an arithmetic number, because the mean of its divisors is an integer number (8124446013075).

Almost surely, 2^{212212102201012} is an apocalyptic number.

It is an amenable number.

212212102201012 is a deficient number, since it is larger than the sum of its proper divisors (177761306426588).

212212102201012 is a wasteful number, since it uses less digits than its factorization.

212212102201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199165396 (or 199165394 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212212102201012 its reverse (210102201212212), we get a palindrome (422314303413224).

The spelling of 212212102201012 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred two million, two hundred one thousand, twelve".