2223320121 has 24 divisors (see below), whose sum is σ = 3598106304. Its totient is φ = 1311046560.

The previous prime is 2223320111. The next prime is 2223320123. The reversal of 2223320121 is 1210233222.

2223320121 is a `hidden beast` number, since 2 + 223 + 320 + 121 = 666.

It is not a de Polignac number, because 2223320121 - 2¹⁹ = 2222795833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2223320094 and 2223320103.

It is not an unprimeable number, because it can be changed into a prime (2223320123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299821 + ... + 307146.

It is an arithmetic number, because the mean of its divisors is an integer number (149921096).

Almost surely, 2^2223320121 is an apocalyptic number.

It is an amenable number.

2223320121 is a deficient number, since it is larger than the sum of its proper divisors (1374786183).

2223320121 is a wasteful number, since it uses less digits than its factorization.

2223320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607021 (or 607018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2223320121 is about 47152.0956162078. The cubic root of 2223320121 is about 1305.1707514274.

Adding to 2223320121 its reverse (1210233222), we get a palindrome (3433553343).

It can be divided in two parts, 22233201 and 21, that added together give a palindrome (22233222).

The spelling of 2223320121 in words is "two billion, two hundred twenty-three million, three hundred twenty thousand, one hundred twenty-one".