2223121230 has 48 divisors (see below), whose sum is σ = 6305583024. Its totient is φ = 538938240.

The previous prime is 2223121213. The next prime is 2223121249. The reversal of 2223121230 is 321213222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1121799 + ... + 1123778.

It is an arithmetic number, because the mean of its divisors is an integer number (131366313).

Almost surely, 2^2223121230 is an apocalyptic number.

2223121230 is an abundant number, since it is smaller than the sum of its proper divisors (4082461794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2223121230 is a wasteful number, since it uses less digits than its factorization.

2223121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245601 (or 2245598 counting only the distinct ones).

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

The square root of 2223121230 is about 47149.9865323417. The cubic root of 2223121230 is about 1305.1318314875.

Adding to 2223121230 its reverse (321213222), we get a palindrome (2544334452).

The spelling of 2223121230 in words is "two billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred thirty".