211332111212 has 6 divisors (see below), whose sum is σ = 369831194628. Its totient is φ = 105666055604.

The previous prime is 211332111173. The next prime is 211332111227. The reversal of 211332111212 is 212111233112.

It is a super-2 number, since 2×211332111212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26416513898 + ... + 26416513905.

It is an arithmetic number, because the mean of its divisors is an integer number (61638532438).

Almost surely, 2^211332111212 is an apocalyptic number.

It is an amenable number.

211332111212 is a deficient number, since it is larger than the sum of its proper divisors (158499083416).

211332111212 is a wasteful number, since it uses less digits than its factorization.

211332111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52833027807 (or 52833027805 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 211332111212 its reverse (212111233112), we get a palindrome (423443344324).

The spelling of 211332111212 in words is "two hundred eleven billion, three hundred thirty-two million, one hundred eleven thousand, two hundred twelve".