55331533421222 has 16 divisors (see below), whose sum is σ = 87365985327600. Its totient is φ = 26209551853440.

The previous prime is 55331533421207. The next prime is 55331533421273. The reversal of 55331533421222 is 22212433513355.

It is a self number, because there is not a number n which added to its sum of digits gives 55331533421222.

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, 5175554 + ... + 11723882.

It is an arithmetic number, because the mean of its divisors is an integer number (5460374082975).

Almost surely, 2^{55331533421222} is an apocalyptic number.

55331533421222 is a deficient number, since it is larger than the sum of its proper divisors (32034451906378).

55331533421222 is a wasteful number, since it uses less digits than its factorization.

55331533421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770711.

The product of its digits is 648000, while the sum is 41.

Adding to 55331533421222 its reverse (22212433513355), we get a palindrome (77543966934577).

The spelling of 55331533421222 in words is "fifty-five trillion, three hundred thirty-one billion, five hundred thirty-three million, four hundred twenty-one thousand, two hundred twenty-two".