212111213130 has 192 divisors, whose sum is σ = 580768531200. Its totient is φ = 53642953728.

The previous prime is 212111213129. The next prime is 212111213137. The reversal of 212111213130 is 31312111212.

212111213130 is a `hidden beast` number, since 21 + 211 + 121 + 313 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (212111213137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 85769574 + ... + 85772046.

It is an arithmetic number, because the mean of its divisors is an integer number (3024836100).

Almost surely, 2^212111213130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212111213130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290384265600).

212111213130 is an abundant number, since it is smaller than the sum of its proper divisors (368657318070).

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

212111213130 is a wasteful number, since it uses less digits than its factorization.

212111213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165 (or 3162 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 212111213130 its reverse (31312111212), we get a palindrome (243423324342).

The spelling of 212111213130 in words is "two hundred twelve billion, one hundred eleven million, two hundred thirteen thousand, one hundred thirty".