1021112212 has 24 divisors (see below), whose sum is σ = 1883685440. Its totient is φ = 482993280.

The previous prime is 1021112189. The next prime is 1021112221. The reversal of 1021112212 is 2122111201.

It is a junction number, because it is equal to n+sod(n) for n = 1021112192 and 1021112201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46012 + ... + 64492.

Almost surely, 2^1021112212 is an apocalyptic number.

It is an amenable number.

1021112212 is a deficient number, since it is larger than the sum of its proper divisors (862573228).

1021112212 is a wasteful number, since it uses less digits than its factorization.

1021112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19231 (or 19229 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1021112212 is about 31954.8464555848. The cubic root of 1021112212 is about 1006.9884517734.

Adding to 1021112212 its reverse (2122111201), we get a palindrome (3143223413).

The spelling of 1021112212 in words is "one billion, twenty-one million, one hundred twelve thousand, two hundred twelve".