212120345484 has 48 divisors (see below), whose sum is σ = 550859904000. Its totient is φ = 70588718928.

The previous prime is 212120345453. The next prime is 212120345501. The reversal of 212120345484 is 484543021212.

212120345484 is a `hidden beast` number, since 2 + 1 + 2 + 120 + 3 + 454 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1574772 + ... + 1704155.

It is an arithmetic number, because the mean of its divisors is an integer number (11476248000).

Almost surely, 2^212120345484 is an apocalyptic number.

It is an amenable number.

212120345484 is an abundant number, since it is smaller than the sum of its proper divisors (338739558516).

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

212120345484 is a wasteful number, since it uses less digits than its factorization.

212120345484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279539 (or 3279531 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 212120345484 its reverse (484543021212), we get a palindrome (696663366696).

The spelling of 212120345484 in words is "two hundred twelve billion, one hundred twenty million, three hundred forty-five thousand, four hundred eighty-four".