20222200121994 has 384 divisors, whose sum is σ = 50255772840000. Its totient is φ = 5832698167296.

The previous prime is 20222200121993. The next prime is 20222200122017. The reversal of 20222200121994 is 49912100222202.

20222200121994 is a `hidden beast` number, since 20 + 222 + 200 + 121 + 9 + 94 = 666.

It can be written as a sum of positive squares in 32 ways, for example, as 2378883623769 + 17843316498225 = 1542363^2 + 4224135^2 .

It is not an unprimeable number, because it can be changed into a prime (20222200121993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18916931292 + ... + 18916932360.

Almost surely, 2^{20222200121994} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222200121994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25127886420000).

20222200121994 is an abundant number, since it is smaller than the sum of its proper divisors (30033572718006).

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

20222200121994 is a wasteful number, since it uses less digits than its factorization.

20222200121994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 20222200121994 in words is "twenty trillion, two hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, nine hundred ninety-four".