221233303132 has 24 divisors (see below), whose sum is σ = 395418752064. Its totient is φ = 108256791552.

The previous prime is 221233303129. The next prime is 221233303147. The reversal of 221233303132 is 231303332122.

It is a junction number, because it is equal to n+sod(n) for n = 221233303097 and 221233303106.

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, 6257248 + ... + 6292504.

It is an arithmetic number, because the mean of its divisors is an integer number (16475781336).

Almost surely, 2^221233303132 is an apocalyptic number.

It is an amenable number.

221233303132 is a deficient number, since it is larger than the sum of its proper divisors (174185448932).

221233303132 is a wasteful number, since it uses less digits than its factorization.

221233303132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68685 (or 68683 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 221233303132 its reverse (231303332122), we get a palindrome (452536635254).

The spelling of 221233303132 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred three thousand, one hundred thirty-two".