212420243003120 has 80 divisors (see below), whose sum is σ = 494225756152128. Its totient is φ = 84908117299200.

The previous prime is 212420243003117. The next prime is 212420243003131. The reversal of 212420243003120 is 21300342024212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 212420243003120.

It is a congruent number.

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, 1486455512 + ... + 1486598408.

Almost surely, 2^{212420243003120} is an apocalyptic number.

212420243003120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212420243003120 is an abundant number, since it is smaller than the sum of its proper divisors (281805513149008).

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

212420243003120 is a wasteful number, since it uses less digits than its factorization.

212420243003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155898 (or 155892 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212420243003120 its reverse (21300342024212), we get a palindrome (233720585027332).

The spelling of 212420243003120 in words is "two hundred twelve trillion, four hundred twenty billion, two hundred forty-three million, three thousand, one hundred twenty".