222320145530 has 16 divisors (see below), whose sum is σ = 457344299520. Its totient is φ = 76224049872.

The previous prime is 222320145469. The next prime is 222320145559. The reversal of 222320145530 is 35541023222.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222320145493 and 222320145502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588000970 + ... + 1588001109.

It is an arithmetic number, because the mean of its divisors is an integer number (28584018720).

Almost surely, 2^222320145530 is an apocalyptic number.

222320145530 is an abundant number, since it is smaller than the sum of its proper divisors (235024153990).

222320145530 is a wasteful number, since it uses less digits than its factorization.

222320145530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176002093.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 222320145530 its reverse (35541023222), we get a palindrome (257861168752).

The spelling of 222320145530 in words is "two hundred twenty-two billion, three hundred twenty million, one hundred forty-five thousand, five hundred thirty".