212051033420 has 48 divisors (see below), whose sum is σ = 447030681888. Its totient is φ = 84492495360.

The previous prime is 212051033387. The next prime is 212051033423. The reversal of 212051033420 is 24330150212.

It is not an unprimeable number, because it can be changed into a prime (212051033423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9986615 + ... + 10007825.

It is an arithmetic number, because the mean of its divisors is an integer number (9313139206).

Almost surely, 2^212051033420 is an apocalyptic number.

212051033420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212051033420 is an abundant number, since it is smaller than the sum of its proper divisors (234979648468).

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

212051033420 is a wasteful number, since it uses less digits than its factorization.

212051033420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23130 (or 23128 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 212051033420 its reverse (24330150212), we get a palindrome (236381183632).

The spelling of 212051033420 in words is "two hundred twelve billion, fifty-one million, thirty-three thousand, four hundred twenty".