2210122121 has 4 divisors (see below), whose sum is σ = 2210217600. Its totient is φ = 2210026644.

The previous prime is 2210122093. The next prime is 2210122157. The reversal of 2210122121 is 1212210122.

2210122121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2210122121 - 2²² = 2205927817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210122096 and 2210122105.

It is not an unprimeable number, because it can be changed into a prime (2210122721) 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, 11420 + ... + 67458.

It is an arithmetic number, because the mean of its divisors is an integer number (552554400).

Almost surely, 2^2210122121 is an apocalyptic number.

It is an amenable number.

2210122121 is a deficient number, since it is larger than the sum of its proper divisors (95479).

2210122121 is an equidigital number, since it uses as much as digits as its factorization.

2210122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95478.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2210122121 is about 47011.9359418435. The cubic root of 2210122121 is about 1302.5830537113.

Adding to 2210122121 its reverse (1212210122), we get a palindrome (3422332243).

It can be divided in two parts, 2210122 and 121, that multiplied together give a palindrome (267424762).

The spelling of 2210122121 in words is "two billion, two hundred ten million, one hundred twenty-two thousand, one hundred twenty-one".