212220020112 has 160 divisors (see below), whose sum is σ = 575633692800. Its totient is φ = 67283521536.

The previous prime is 212220020063. The next prime is 212220020143. The reversal of 212220020112 is 211020022212.

It is a junction number, because it is equal to n+sod(n) for n = 212220020091 and 212220020100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35057278 + ... + 35063330.

It is an arithmetic number, because the mean of its divisors is an integer number (3597710580).

Almost surely, 2^212220020112 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 212220020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287816846400).

212220020112 is an abundant number, since it is smaller than the sum of its proper divisors (363413672688).

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

212220020112 is a wasteful number, since it uses less digits than its factorization.

212220020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465 (or 6459 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212220020112 its reverse (211020022212), we get a palindrome (423240042324).

The spelling of 212220020112 in words is "two hundred twelve billion, two hundred twenty million, twenty thousand, one hundred twelve".