2121212201201 has 8 divisors (see below), whose sum is σ = 2170584620160. Its totient is φ = 2071841686992.

The previous prime is 2121212201161. The next prime is 2121212201221. The reversal of 2121212201201 is 1021022121212.

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 2121212201201 - 2¹⁸ = 2121211939057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121212201201.

It is not an unprimeable number, because it can be changed into a prime (2121212201221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915160 + ... + 2812518.

It is an arithmetic number, because the mean of its divisors is an integer number (271323077520).

Almost surely, 2^{2121212201201} is an apocalyptic number.

It is an amenable number.

2121212201201 is a deficient number, since it is larger than the sum of its proper divisors (49372418959).

2121212201201 is an equidigital number, since it uses as much as digits as its factorization.

2121212201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952375.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121212201201 its reverse (1021022121212), we get a palindrome (3142234322413).

The spelling of 2121212201201 in words is "two trillion, one hundred twenty-one billion, two hundred twelve million, two hundred one thousand, two hundred one".