21122202250050 has 96 divisors (see below), whose sum is σ = 57595120533504. Its totient is φ = 5080214664000.

The previous prime is 21122202250031. The next prime is 21122202250147. The reversal of 21122202250050 is 5005220222112.

It is a super-2 number, since 2×21122202250050² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122202250050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50189406 + ... + 50608505.

It is an arithmetic number, because the mean of its divisors is an integer number (599949172224).

Almost surely, 2^{21122202250050} is an apocalyptic number.

21122202250050 is an abundant number, since it is smaller than the sum of its proper divisors (36472918283454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122202250050 is a wasteful number, since it uses less digits than its factorization.

21122202250050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100798064 (or 100798059 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 21122202250050 its reverse (5005220222112), we get a palindrome (26127422472162).

The spelling of 21122202250050 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred two million, two hundred fifty thousand, fifty".