212020032120320 has 80 divisors (see below), whose sum is σ = 508409794453968. Its totient is φ = 84798230077440.

The previous prime is 212020032120317. The next prime is 212020032120431. The reversal of 212020032120320 is 23021230020212.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212020032120292 and 212020032120301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17440715 + ... + 26985525.

Almost surely, 2^{212020032120320} is an apocalyptic number.

212020032120320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020032120320 is an abundant number, since it is smaller than the sum of its proper divisors (296389762333648).

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

212020032120320 is an frugal number, since it uses more digits than its factorization.

212020032120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9553511 (or 9553495 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212020032120320 its reverse (23021230020212), we get a palindrome (235041262140532).

The spelling of 212020032120320 in words is "two hundred twelve trillion, twenty billion, thirty-two million, one hundred twenty thousand, three hundred twenty".