212210222112 has 384 divisors, whose sum is σ = 725821931520. Its totient is φ = 59070228480.

The previous prime is 212210222101. The next prime is 212210222251. The reversal of 212210222112 is 211222012212.

It is a happy number.

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, 36641937 + ... + 36647727.

It is an arithmetic number, because the mean of its divisors is an integer number (1890161280).

Almost surely, 2^212210222112 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 212210222112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362910965760).

212210222112 is an abundant number, since it is smaller than the sum of its proper divisors (513611709408).

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

212210222112 is a wasteful number, since it uses less digits than its factorization.

212210222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973 (or 5959 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212210222112 its reverse (211222012212), we get a palindrome (423432234324).

The spelling of 212210222112 in words is "two hundred twelve billion, two hundred ten million, two hundred twenty-two thousand, one hundred twelve".