212213230020 has 240 divisors, whose sum is σ = 728580238848. Its totient is φ = 51279920640.

The previous prime is 212213230007. The next prime is 212213230027. The reversal of 212213230020 is 20032312212.

212213230020 is a `hidden beast` number, since 212 + 2 + 132 + 300 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 212213229975 and 212213230002.

It is not an unprimeable number, because it can be changed into a prime (212213230027) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5558637 + ... + 5596683.

Almost surely, 2^212213230020 is an apocalyptic number.

212213230020 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 212213230020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364290119424).

212213230020 is an abundant number, since it is smaller than the sum of its proper divisors (516367008828).

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

212213230020 is a wasteful number, since it uses less digits than its factorization.

212213230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38392 (or 38381 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212213230020 its reverse (20032312212), we get a palindrome (232245542232).

The spelling of 212213230020 in words is "two hundred twelve billion, two hundred thirteen million, two hundred thirty thousand, twenty".