2112121112212 has 12 divisors (see below), whose sum is σ = 3700769550016. Its totient is φ = 1054758383640.

The previous prime is 2112121112207. The next prime is 2112121112237. The reversal of 2112121112212 is 2122111212112.

It is a happy number.

It is a super-2 number, since 2×2112121112212² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2112121112212.

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, 325539468 + ... + 325545955.

Almost surely, 2^{2112121112212} is an apocalyptic number.

It is an amenable number.

2112121112212 is a deficient number, since it is larger than the sum of its proper divisors (1588648437804).

2112121112212 is a wasteful number, since it uses less digits than its factorization.

2112121112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651086238 (or 651086236 counting only the distinct ones).

The product of its digits is 64, while the sum is 19.

Adding to 2112121112212 its reverse (2122111212112), we get a palindrome (4234232324324).

The spelling of 2112121112212 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twelve".