2110002222121 has 4 divisors (see below), whose sum is σ = 2110056540372. Its totient is φ = 2109947903872.

The previous prime is 2110002222109. The next prime is 2110002222131. The reversal of 2110002222121 is 1212222000112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2063348382096 + 46653840025 = 1436436^2 + 215995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110002222121 - 2⁹ = 2110002221609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110002222095 and 2110002222104.

It is not an unprimeable number, because it can be changed into a prime (2110002222131) 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 3 ways as a sum of consecutive naturals, for example, 27100816 + ... + 27178561.

It is an arithmetic number, because the mean of its divisors is an integer number (527514135093).

Almost surely, 2^{2110002222121} is an apocalyptic number.

It is an amenable number.

2110002222121 is a deficient number, since it is larger than the sum of its proper divisors (54318251).

2110002222121 is an equidigital number, since it uses as much as digits as its factorization.

2110002222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54318250.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2110002222121 its reverse (1212222000112), we get a palindrome (3322224222233).

The spelling of 2110002222121 in words is "two trillion, one hundred ten billion, two million, two hundred twenty-two thousand, one hundred twenty-one".