220321202132 has 6 divisors (see below), whose sum is σ = 385562103738. Its totient is φ = 110160601064.

The previous prime is 220321202119. The next prime is 220321202147. The reversal of 220321202132 is 231202123022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 191280270736 + 29040931396 = 437356^2 + 170414^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27540150263 + ... + 27540150270.

It is an arithmetic number, because the mean of its divisors is an integer number (64260350623).

Almost surely, 2^220321202132 is an apocalyptic number.

It is an amenable number.

220321202132 is a deficient number, since it is larger than the sum of its proper divisors (165240901606).

220321202132 is a wasteful number, since it uses less digits than its factorization.

220321202132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55080300537 (or 55080300535 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220321202132 its reverse (231202123022), we get a palindrome (451523325154).

The spelling of 220321202132 in words is "two hundred twenty billion, three hundred twenty-one million, two hundred two thousand, one hundred thirty-two".