222320145532 has 24 divisors (see below), whose sum is σ = 406143876096. Its totient is φ = 106283037168.

The previous prime is 222320145469. The next prime is 222320145559. The reversal of 222320145532 is 235541023222.

222320145532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222320145494 and 222320145503.

It is a congruent number.

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, 275748 + ... + 721579.

It is an arithmetic number, because the mean of its divisors is an integer number (16922661504).

Almost surely, 2^222320145532 is an apocalyptic number.

It is an amenable number.

222320145532 is a deficient number, since it is larger than the sum of its proper divisors (183823730564).

222320145532 is a wasteful number, since it uses less digits than its factorization.

222320145532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999777 (or 999775 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 222320145532 its reverse (235541023222), we get a palindrome (457861168754).

The spelling of 222320145532 in words is "two hundred twenty-two billion, three hundred twenty million, one hundred forty-five thousand, five hundred thirty-two".