212021110112 has 192 divisors, whose sum is σ = 494533444608. Its totient is φ = 87609600000.

The previous prime is 212021110109. The next prime is 212021110129. The reversal of 212021110112 is 211011120212.

It is a super-2 number, since 2×212021110112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 181059287 + ... + 181060457.

It is an arithmetic number, because the mean of its divisors is an integer number (2575695024).

Almost surely, 2^212021110112 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 212021110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247266722304).

212021110112 is an abundant number, since it is smaller than the sum of its proper divisors (282512334496).

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

212021110112 is a wasteful number, since it uses less digits than its factorization.

212021110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212021110112 its reverse (211011120212), we get a palindrome (423032230324).

The spelling of 212021110112 in words is "two hundred twelve billion, twenty-one million, one hundred ten thousand, one hundred twelve".