2110210121 has 4 divisors (see below), whose sum is σ = 2115720192. Its totient is φ = 2104700052.

The previous prime is 2110210103. The next prime is 2110210133. The reversal of 2110210121 is 1210120112.

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 2110210121 - 2²² = 2106015817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2110210321) 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, 2754461 + ... + 2755226.

It is an arithmetic number, because the mean of its divisors is an integer number (528930048).

Almost surely, 2^2110210121 is an apocalyptic number.

It is an amenable number.

2110210121 is a deficient number, since it is larger than the sum of its proper divisors (5510071).

2110210121 is an equidigital number, since it uses as much as digits as its factorization.

2110210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510070.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2110210121 is about 45937.0234233782. The cubic root of 2110210121 is about 1282.6511864853.

Adding to 2110210121 its reverse (1210120112), we get a palindrome (3320330233).

Subtracting from 2110210121 its reverse (1210120112), we obtain a palindrome (900090009).

The spelling of 2110210121 in words is "two billion, one hundred ten million, two hundred ten thousand, one hundred twenty-one".