211202221121212 has 24 divisors (see below), whose sum is σ = 369906770142000. Its totient is φ = 105514576738176.

The previous prime is 211202221121149. The next prime is 211202221121263. The reversal of 211202221121212 is 212121122202112.

211202221121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 207645664 + ... + 208660312.

It is an arithmetic number, because the mean of its divisors is an integer number (15412782089250).

Almost surely, 2^{211202221121212} is an apocalyptic number.

It is an amenable number.

211202221121212 is a deficient number, since it is larger than the sum of its proper divisors (158704549020788).

211202221121212 is a wasteful number, since it uses less digits than its factorization.

211202221121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057245 (or 1057243 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211202221121212 its reverse (212121122202112), we get a palindrome (423323343323324).

The spelling of 211202221121212 in words is "two hundred eleven trillion, two hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twelve".