221123032 has 32 divisors (see below), whose sum is σ = 454078800. Its totient is φ = 100324224.

The previous prime is 221123017. The next prime is 221123047. The reversal of 221123032 is 230321122.

It is an interprime number because it is at equal distance from previous prime (221123017) and next prime (221123047).

It is a junction number, because it is equal to n+sod(n) for n = 221122997 and 221123015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11883 + ... + 24154.

Almost surely, 2^221123032 is an apocalyptic number.

It is an amenable number.

221123032 is an abundant number, since it is smaller than the sum of its proper divisors (232955768).

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

221123032 is a wasteful number, since it uses less digits than its factorization.

221123032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36115 (or 36111 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221123032 is about 14870.2061855241. The cubic root of 221123032 is about 604.7065325335.

Adding to 221123032 its reverse (230321122), we get a palindrome (451444154).

The spelling of 221123032 in words is "two hundred twenty-one million, one hundred twenty-three thousand, thirty-two".