212133030420 has 24 divisors (see below), whose sum is σ = 593972485344. Its totient is φ = 56568808096.

The previous prime is 212133030397. The next prime is 212133030457. The reversal of 212133030420 is 24030331212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1767775194 + ... + 1767775313.

It is an arithmetic number, because the mean of its divisors is an integer number (24748853556).

Almost surely, 2^212133030420 is an apocalyptic number.

212133030420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212133030420 is an abundant number, since it is smaller than the sum of its proper divisors (381839454924).

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

212133030420 is a wasteful number, since it uses less digits than its factorization.

212133030420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535550519 (or 3535550517 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212133030420 its reverse (24030331212), we get a palindrome (236163361632).

The spelling of 212133030420 in words is "two hundred twelve billion, one hundred thirty-three million, thirty thousand, four hundred twenty".