212133304420 has 48 divisors (see below), whose sum is σ = 466327120896. Its totient is φ = 80959536000.

The previous prime is 212133304351. The next prime is 212133304463. The reversal of 212133304420 is 24403331212.

It is a super-3 number, since 3×212133304420³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365491 + ... + 2453530.

It is an arithmetic number, because the mean of its divisors is an integer number (9715148352).

Almost surely, 2^212133304420 is an apocalyptic number.

212133304420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212133304420 is an abundant number, since it is smaller than the sum of its proper divisors (254193816476).

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

212133304420 is a wasteful number, since it uses less digits than its factorization.

212133304420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819132 (or 4819130 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212133304420 its reverse (24403331212), we get a palindrome (236536635632).

The spelling of 212133304420 in words is "two hundred twelve billion, one hundred thirty-three million, three hundred four thousand, four hundred twenty".