20212112201212 has 12 divisors (see below), whose sum is σ = 35899124656360. Its totient is φ = 9955219442256.

The previous prime is 20212112201153. The next prime is 20212112201233. The reversal of 20212112201212 is 21210221121202.

It is a self number, because there is not a number n which added to its sum of digits gives 20212112201212.

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, 37709164287 + ... + 37709164822.

Almost surely, 2^{20212112201212} is an apocalyptic number.

It is an amenable number.

20212112201212 is a deficient number, since it is larger than the sum of its proper divisors (15687012455148).

20212112201212 is a wasteful number, since it uses less digits than its factorization.

20212112201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75418329180 (or 75418329178 counting only the distinct ones).

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

Adding to 20212112201212 its reverse (21210221121202), we get a palindrome (41422333322414).

The spelling of 20212112201212 in words is "twenty trillion, two hundred twelve billion, one hundred twelve million, two hundred one thousand, two hundred twelve".