211212111120112 has 10 divisors (see below), whose sum is σ = 409223465295248. Its totient is φ = 105606055560048.

The previous prime is 211212111120029. The next prime is 211212111120113. The reversal of 211212111120112 is 211021111212112.

It is a super-2 number, since 2×211212111120112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211212111120112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212111120113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600378472488 + ... + 6600378472519.

Almost surely, 2^{211212111120112} is an apocalyptic number.

It is an amenable number.

211212111120112 is a deficient number, since it is larger than the sum of its proper divisors (198011354175136).

211212111120112 is a wasteful number, since it uses less digits than its factorization.

211212111120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13200756945015 (or 13200756945009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211212111120112 its reverse (211021111212112), we get a palindrome (422233222332224).

The spelling of 211212111120112 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred eleven million, one hundred twenty thousand, one hundred twelve".