2122101221201 has 16 divisors (see below), whose sum is σ = 2384766074880. Its totient is φ = 1873644674880.

The previous prime is 2122101221189. The next prime is 2122101221209. The reversal of 2122101221201 is 1021221012212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122101221201 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 2122101221201.

It is not an unprimeable number, because it can be changed into a prime (2122101221209) 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 15 ways as a sum of consecutive naturals, for example, 15281840 + ... + 15420078.

It is an arithmetic number, because the mean of its divisors is an integer number (149047879680).

Almost surely, 2^{2122101221201} is an apocalyptic number.

It is an amenable number.

2122101221201 is a deficient number, since it is larger than the sum of its proper divisors (262664853679).

2122101221201 is a wasteful number, since it uses less digits than its factorization.

2122101221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189616.

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

Adding to 2122101221201 its reverse (1021221012212), we get a palindrome (3143322233413).

The spelling of 2122101221201 in words is "two trillion, one hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, two hundred one".