212020221221201 has 8 divisors (see below), whose sum is σ = 214171924867200. Its totient is φ = 209869546860400.

The previous prime is 212020221221189. The next prime is 212020221221231. The reversal of 212020221221201 is 102122122020212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212020221221201 - 2³⁸ = 211745343314257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212020221221231) 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 7 ways as a sum of consecutive naturals, for example, 256907231 + ... + 257731188.

It is an arithmetic number, because the mean of its divisors is an integer number (26771490608400).

Almost surely, 2^{212020221221201} is an apocalyptic number.

It is an amenable number.

212020221221201 is a deficient number, since it is larger than the sum of its proper divisors (2151703645999).

212020221221201 is a wasteful number, since it uses less digits than its factorization.

212020221221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514642599.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212020221221201 its reverse (102122122020212), we get a palindrome (314142343241413).

The spelling of 212020221221201 in words is "two hundred twelve trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred one".