2112121202212 has 12 divisors (see below), whose sum is σ = 4224242404480. Its totient is φ = 905194800936.

The previous prime is 2112121202209. The next prime is 2112121202251. The reversal of 2112121202212 is 2122021212112.

2112121202212 is an admirable number.

It is a super-2 number, since 2×2112121202212² (a number of 25 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 2112121202212.

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, 37716450012 + ... + 37716450067.

Almost surely, 2^{2112121202212} is an apocalyptic number.

It is an amenable number.

2112121202212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112121202212 is a wasteful number, since it uses less digits than its factorization.

2112121202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75432900090 (or 75432900088 counting only the distinct ones).

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

Adding to 2112121202212 its reverse (2122021212112), we get a palindrome (4234142414324).

The spelling of 2112121202212 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, two hundred twelve".