2220210121 has 8 divisors (see below), whose sum is σ = 2263178880. Its totient is φ = 2177281392.

The previous prime is 2220210071. The next prime is 2220210163. The reversal of 2220210121 is 1210120222.

It is a happy number.

2220210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2220210121 - 2¹⁵ = 2220177353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220210191) 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, 117510 + ... + 135088.

It is an arithmetic number, because the mean of its divisors is an integer number (282897360).

Almost surely, 2^2220210121 is an apocalyptic number.

It is an amenable number.

2220210121 is a deficient number, since it is larger than the sum of its proper divisors (42968759).

2220210121 is a wasteful number, since it uses less digits than its factorization.

2220210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2220210121 is about 47119.1056897306. The cubic root of 2220210121 is about 1304.5619059599.

Adding to 2220210121 its reverse (1210120222), we get a palindrome (3430330343).

It can be divided in two parts, 22202 and 10121, that added together give a palindrome (32323).

The spelling of 2220210121 in words is "two billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-one".