212320320021201 has 32 divisors (see below), whose sum is σ = 335966934820608. Its totient is φ = 116745266856960.

The previous prime is 212320320021197. The next prime is 212320320021217. The reversal of 212320320021201 is 102120023023212.

It is not a de Polignac number, because 212320320021201 - 2² = 212320320021197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212320320021401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1688960106 + ... + 1689085811.

It is an arithmetic number, because the mean of its divisors is an integer number (10498966713144).

Almost surely, 2^{212320320021201} is an apocalyptic number.

212320320021201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212320320021201 is a deficient number, since it is larger than the sum of its proper divisors (123646614799407).

212320320021201 is a wasteful number, since it uses less digits than its factorization.

212320320021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378046041.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212320320021201 its reverse (102120023023212), we get a palindrome (314440343044413).

The spelling of 212320320021201 in words is "two hundred twelve trillion, three hundred twenty billion, three hundred twenty million, twenty-one thousand, two hundred one".