51222016622 has 24 divisors (see below), whose sum is σ = 90197185320. Its totient is φ = 21750891120.

The previous prime is 51222016591. The next prime is 51222016687. The reversal of 51222016622 is 22661022215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2386904 + ... + 2408267.

It is an arithmetic number, because the mean of its divisors is an integer number (3758216055).

Almost surely, 2^51222016622 is an apocalyptic number.

51222016622 is a deficient number, since it is larger than the sum of its proper divisors (38975168698).

51222016622 is a wasteful number, since it uses less digits than its factorization.

51222016622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795296 (or 4795289 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 51222016622 its reverse (22661022215), we get a palindrome (73883038837).

The spelling of 51222016622 in words is "fifty-one billion, two hundred twenty-two million, sixteen thousand, six hundred twenty-two".