2112022012 has 72 divisors (see below), whose sum is σ = 4070394720. Its totient is φ = 956482560.

The previous prime is 2112022001. The next prime is 2112022021. The reversal of 2112022012 is 2102202112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2112021983 and 2112022001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5163664 + ... + 5164072.

It is an arithmetic number, because the mean of its divisors is an integer number (56533260).

Almost surely, 2^2112022012 is an apocalyptic number.

It is an amenable number.

2112022012 is a deficient number, since it is larger than the sum of its proper divisors (1958372708).

2112022012 is a wasteful number, since it uses less digits than its factorization.

2112022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2112022012 is about 45956.7406590154. The cubic root of 2112022012 is about 1283.0181893216.

Adding to 2112022012 its reverse (2102202112), we get a palindrome (4214224124).

The spelling of 2112022012 in words is "two billion, one hundred twelve million, twenty-two thousand, twelve".