2122101100121 has 4 divisors (see below), whose sum is σ = 2122108827600. Its totient is φ = 2122093372644.

The previous prime is 2122101100117. The next prime is 2122101100157. The reversal of 2122101100121 is 1210011012212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2122101100121 - 2² = 2122101100117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122101100096 and 2122101100105.

It is not an unprimeable number, because it can be changed into a prime (2122101100111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3436031 + ... + 4006308.

It is an arithmetic number, because the mean of its divisors is an integer number (530527206900).

Almost surely, 2^{2122101100121} is an apocalyptic number.

It is an amenable number.

2122101100121 is a deficient number, since it is larger than the sum of its proper divisors (7727479).

2122101100121 is an equidigital number, since it uses as much as digits as its factorization.

2122101100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7727478.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2122101100121 its reverse (1210011012212), we get a palindrome (3332112112333).

It can be divided in two parts, 2122101 and 100121, that added together give a palindrome (2222222).

The spelling of 2122101100121 in words is "two trillion, one hundred twenty-two billion, one hundred one million, one hundred thousand, one hundred twenty-one".