212323323212 has 192 divisors, whose sum is σ = 526911221760. Its totient is φ = 72097516800.

The previous prime is 212323323169. The next prime is 212323323259.

212323323212 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 23350787 + ... + 23359877.

It is an arithmetic number, because the mean of its divisors is an integer number (2744329280).

Almost surely, 2^212323323212 is an apocalyptic number.

212323323212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212323323212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263455610880).

212323323212 is an abundant number, since it is smaller than the sum of its proper divisors (314587898548).

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

212323323212 is a wasteful number, since it uses less digits than its factorization.

212323323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452 (or 9450 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

It can be divided in two parts, 212323 and 323212, that added together give a palindrome (535535).

The spelling of 212323323212 in words is "two hundred twelve billion, three hundred twenty-three million, three hundred twenty-three thousand, two hundred twelve".