212220012011112 has 256 divisors, whose sum is σ = 688045982400000. Its totient is φ = 60582922686720.

The previous prime is 212220012011099. The next prime is 212220012011221. The reversal of 212220012011112 is 211110210022212.

212220012011112 is a `hidden beast` number, since 212 + 220 + 0 + 120 + 1 + 1 + 112 = 666.

It is a super-2 number, since 2×212220012011112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86285214 + ... + 88710642.

It is an arithmetic number, because the mean of its divisors is an integer number (2687679618750).

Almost surely, 2^{212220012011112} 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 212220012011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344022991200000).

212220012011112 is an abundant number, since it is smaller than the sum of its proper divisors (475825970388888).

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

212220012011112 is a wasteful number, since it uses less digits than its factorization.

212220012011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426646 (or 2426622 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212220012011112 its reverse (211110210022212), we get a palindrome (423330222033324).

The spelling of 212220012011112 in words is "two hundred twelve trillion, two hundred twenty billion, twelve million, eleven thousand, one hundred twelve".