221032220332 has 24 divisors (see below), whose sum is σ = 482252117760. Its totient is φ = 86116449360.

The previous prime is 221032220249. The next prime is 221032220363. The reversal of 221032220332 is 233022230122.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 358818232 + ... + 358818847.

It is an arithmetic number, because the mean of its divisors is an integer number (20093838240).

Almost surely, 2^221032220332 is an apocalyptic number.

221032220332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221032220332 is an abundant number, since it is smaller than the sum of its proper divisors (261219897428).

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

221032220332 is a wasteful number, since it uses less digits than its factorization.

221032220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717637101 (or 717637099 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 221032220332 its reverse (233022230122), we get a palindrome (454054450454).

The spelling of 221032220332 in words is "two hundred twenty-one billion, thirty-two million, two hundred twenty thousand, three hundred thirty-two".