20021022220194 has 48 divisors (see below), whose sum is σ = 43456832540160. Its totient is φ = 6661684892160.

The previous prime is 20021022220193. The next prime is 20021022220201. The reversal of 20021022220194 is 49102222012002.

20021022220194 is a `hidden beast` number, since 20 + 0 + 210 + 22 + 220 + 194 = 666.

It is not an unprimeable number, because it can be changed into a prime (20021022220193) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 74939202 + ... + 75205890.

It is an arithmetic number, because the mean of its divisors is an integer number (905350677920).

Almost surely, 2^{20021022220194} is an apocalyptic number.

20021022220194 is an abundant number, since it is smaller than the sum of its proper divisors (23435810319966).

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

20021022220194 is a wasteful number, since it uses less digits than its factorization.

20021022220194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274175 (or 274172 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 20021022220194 its reverse (49102222012002), we get a palindrome (69123244232196).

The spelling of 20021022220194 in words is "twenty trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred ninety-four".