212101210012 has 12 divisors (see below), whose sum is σ = 383976328680. Its totient is φ = 102393687536.

The previous prime is 212101209973. The next prime is 212101210021. The reversal of 212101210012 is 210012101212.

It is a junction number, because it is equal to n+sod(n) for n = 212101209974 and 212101210001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914229238 + ... + 914229469.

It is an arithmetic number, because the mean of its divisors is an integer number (31998027390).

Almost surely, 2^212101210012 is an apocalyptic number.

It is an amenable number.

212101210012 is a deficient number, since it is larger than the sum of its proper divisors (171875118668).

212101210012 is a wasteful number, since it uses less digits than its factorization.

212101210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828458740 (or 1828458738 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212101210012 its reverse (210012101212), we get a palindrome (422113311224).

The spelling of 212101210012 in words is "two hundred twelve billion, one hundred one million, two hundred ten thousand, twelve".