221223310332 has 24 divisors (see below), whose sum is σ = 516240136272. Its totient is φ = 73733616000.

The previous prime is 221223310309. The next prime is 221223310339. The reversal of 221223310332 is 233013322122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223310339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812169 + ... + 1049792.

It is an arithmetic number, because the mean of its divisors is an integer number (21510005678).

Almost surely, 2^221223310332 is an apocalyptic number.

It is an amenable number.

221223310332 is an abundant number, since it is smaller than the sum of its proper divisors (295016825940).

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

221223310332 is a wasteful number, since it uses less digits than its factorization.

221223310332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871869 (or 1871867 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221223310332 its reverse (233013322122), we get a palindrome (454236632454).

The spelling of 221223310332 in words is "two hundred twenty-one billion, two hundred twenty-three million, three hundred ten thousand, three hundred thirty-two".