212120101210012 has 24 divisors (see below), whose sum is σ = 375382071474480. Its totient is φ = 104868087096960.

The previous prime is 212120101209971. The next prime is 212120101210099. The reversal of 212120101210012 is 210012101021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222972663 + ... + 223921969.

It is an arithmetic number, because the mean of its divisors is an integer number (15640919644770).

Almost surely, 2^{212120101210012} is an apocalyptic number.

It is an amenable number.

212120101210012 is a deficient number, since it is larger than the sum of its proper divisors (163261970264468).

212120101210012 is a wasteful number, since it uses less digits than its factorization.

212120101210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577061 (or 1577059 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212120101210012 its reverse (210012101021212), we get a palindrome (422132202231224).

The spelling of 212120101210012 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred one million, two hundred ten thousand, twelve".