212230120000 has 140 divisors (see below), whose sum is σ = 544411654380. Its totient is φ = 81964288000.

The previous prime is 212230119991. The next prime is 212230120001. The reversal of 212230120000 is 21032212.

It can be written as a sum of positive squares in 10 ways, for example, as 123302108736 + 88928011264 = 351144^2 + 298208^2 .

It is not an unprimeable number, because it can be changed into a prime (212230120001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1068522 + ... + 1251478.

Almost surely, 2^212230120000 is an apocalyptic number.

212230120000 is a gapful number since it is divisible by the number (20) 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 212230120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272205827190).

212230120000 is an abundant number, since it is smaller than the sum of its proper divisors (332181534380).

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

212230120000 is an equidigital number, since it uses as much as digits as its factorization.

212230120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183018 (or 182993 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 212230120000 its reverse (21032212), we get a palindrome (212251152212).

The spelling of 212230120000 in words is "two hundred twelve billion, two hundred thirty million, one hundred twenty thousand".