212021001112 has 16 divisors (see below), whose sum is σ = 398018930400. Its totient is φ = 105882619680.

The previous prime is 212021001109. The next prime is 212021001161. The reversal of 212021001112 is 211100120212.

It is a junction number, because it is equal to n+sod(n) for n = 212021001092 and 212021001101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15978064 + ... + 15991327.

It is an arithmetic number, because the mean of its divisors is an integer number (24876183150).

Almost surely, 2^212021001112 is an apocalyptic number.

It is an amenable number.

212021001112 is a deficient number, since it is larger than the sum of its proper divisors (185997929288).

212021001112 is a wasteful number, since it uses less digits than its factorization.

212021001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31970226 (or 31970222 counting only the distinct ones).

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

Adding to 212021001112 its reverse (211100120212), we get a palindrome (423121121324).

The spelling of 212021001112 in words is "two hundred twelve billion, twenty-one million, one thousand, one hundred twelve".