212220330000 has 400 divisors, whose sum is σ = 784520073216. Its totient is φ = 48409920000.

The previous prime is 212220329947. The next prime is 212220330013. The reversal of 212220330000 is 33022212.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 181229415 + ... + 181230585.

Almost surely, 2^212220330000 is an apocalyptic number.

212220330000 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 212220330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392260036608).

212220330000 is an abundant number, since it is smaller than the sum of its proper divisors (572299743216).

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

212220330000 is a wasteful number, since it uses less digits than its factorization.

212220330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 212220330000 its reverse (33022212), we get a palindrome (212253352212).

The spelling of 212220330000 in words is "two hundred twelve billion, two hundred twenty million, three hundred thirty thousand".