212122020023112 has 256 divisors, whose sum is σ = 568035078912000. Its totient is φ = 65863380768768.

The previous prime is 212122020023077. The next prime is 212122020023113. The reversal of 212122020023112 is 211320020221212.

It is not an unprimeable number, because it can be changed into a prime (212122020023113) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2068765798 + ... + 2068868330.

It is an arithmetic number, because the mean of its divisors is an integer number (2218887027000).

Almost surely, 2^{212122020023112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212122020023112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284017539456000).

212122020023112 is an abundant number, since it is smaller than the sum of its proper divisors (355913058888888).

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

212122020023112 is a wasteful number, since it uses less digits than its factorization.

212122020023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103220 (or 103216 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212122020023112 its reverse (211320020221212), we get a palindrome (423442040244324).

The spelling of 212122020023112 in words is "two hundred twelve trillion, one hundred twenty-two billion, twenty million, twenty-three thousand, one hundred twelve".