222220644532 has 6 divisors (see below), whose sum is σ = 388886127938. Its totient is φ = 111110322264.

The previous prime is 222220644521. The next prime is 222220644571. The reversal of 222220644532 is 235446022222.

It can be written as a sum of positive squares in only one way, i.e., 145676568976 + 76544075556 = 381676^2 + 276666^2 .

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, 27777580563 + ... + 27777580570.

Almost surely, 2^222220644532 is an apocalyptic number.

It is an amenable number.

222220644532 is a deficient number, since it is larger than the sum of its proper divisors (166665483406).

222220644532 is a wasteful number, since it uses less digits than its factorization.

222220644532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555161137 (or 55555161135 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 222220644532 its reverse (235446022222), we get a palindrome (457666666754).

The spelling of 222220644532 in words is "two hundred twenty-two billion, two hundred twenty million, six hundred forty-four thousand, five hundred thirty-two".