2122021122101 has 8 divisors (see below), whose sum is σ = 2146258719000. Its totient is φ = 2097870243840.

The previous prime is 2122021122083. The next prime is 2122021122139. The reversal of 2122021122101 is 1012211202212.

It can be written as a sum of positive squares in 4 ways, for example, as 63226599601 + 2058794522500 = 251449^2 + 1434850^2 .

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 2122021122101 - 2⁶ = 2122021122037 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 2122021122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122021122191) 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, 21630440 + ... + 21728321.

It is an arithmetic number, because the mean of its divisors is an integer number (268282339875).

Almost surely, 2^{2122021122101} is an apocalyptic number.

It is an amenable number.

2122021122101 is a deficient number, since it is larger than the sum of its proper divisors (24237596899).

2122021122101 is a wasteful number, since it uses less digits than its factorization.

2122021122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43359319.

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

Adding to 2122021122101 its reverse (1012211202212), we get a palindrome (3134232324313).

The spelling of 2122021122101 in words is "two trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, one hundred one".