2223032121 has 40 divisors (see below), whose sum is σ = 3370890600. Its totient is φ = 1459814400.

The previous prime is 2223032099. The next prime is 2223032131. The reversal of 2223032121 is 1212303222.

It can be written as a sum of positive squares in 4 ways, for example, as 538750521 + 1684281600 = 23211^2 + 41040^2 .

It is not a de Polignac number, because 2223032121 - 2¹⁴ = 2223015737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2223032094 and 2223032103.

It is not an unprimeable number, because it can be changed into a prime (2223032131) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2890425 + ... + 2891193.

It is an arithmetic number, because the mean of its divisors is an integer number (84272265).

Almost surely, 2^2223032121 is an apocalyptic number.

It is an amenable number.

2223032121 is a deficient number, since it is larger than the sum of its proper divisors (1147858479).

2223032121 is an equidigital number, since it uses as much as digits as its factorization.

2223032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1262 counting only the distinct ones).

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

The square root of 2223032121 is about 47149.0415703225. The cubic root of 2223032121 is about 1305.1143934601.

Adding to 2223032121 its reverse (1212303222), we get a palindrome (3435335343).

The spelling of 2223032121 in words is "two billion, two hundred twenty-three million, thirty-two thousand, one hundred twenty-one".