20102200221650 has 24 divisors (see below), whose sum is σ = 37416075932160. Its totient is φ = 8035292234960.

The previous prime is 20102200221637. The next prime is 20102200221707. The reversal of 20102200221650 is 5612200220102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139623674 + ... + 139767573.

It is an arithmetic number, because the mean of its divisors is an integer number (1559003163840).

Almost surely, 2^{20102200221650} is an apocalyptic number.

20102200221650 is a deficient number, since it is larger than the sum of its proper divisors (17313875710510).

20102200221650 is a wasteful number, since it uses less digits than its factorization.

20102200221650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279392698 (or 279392693 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 20102200221650 its reverse (5612200220102), we get a palindrome (25714400441752).

The spelling of 20102200221650 in words is "twenty trillion, one hundred two billion, two hundred million, two hundred twenty-one thousand, six hundred fifty".