20002122221122 has 32 divisors (see below), whose sum is σ = 30645420031872. Its totient is φ = 9787952663424.

The previous prime is 20002122221111. The next prime is 20002122221129. The reversal of 20002122221122 is 22112222120002.

It is a self number, because there is not a number n which added to its sum of digits gives 20002122221122.

It is not an unprimeable number, because it can be changed into a prime (20002122221129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 68510638 + ... + 68801974.

It is an arithmetic number, because the mean of its divisors is an integer number (957669375996).

Almost surely, 2^{20002122221122} is an apocalyptic number.

20002122221122 is a deficient number, since it is larger than the sum of its proper divisors (10643297810750).

20002122221122 is a wasteful number, since it uses less digits than its factorization.

20002122221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293002.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20002122221122 its reverse (22112222120002), we get a palindrome (42114344341124).

The spelling of 20002122221122 in words is "twenty trillion, two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-two".