20012000200122 has 64 divisors (see below), whose sum is σ = 47321436384000. Its totient is φ = 5520269314560.

The previous prime is 20012000200063. The next prime is 20012000200123. The reversal of 20012000200122 is 22100200021002.

It is a junction number, because it is equal to n+sod(n) for n = 20012000200098 and 20012000200107.

It is not an unprimeable number, because it can be changed into a prime (20012000200123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23975254 + ... + 24795902.

It is an arithmetic number, because the mean of its divisors is an integer number (739397443500).

Almost surely, 2^{20012000200122} is an apocalyptic number.

20012000200122 is an abundant number, since it is smaller than the sum of its proper divisors (27309436183878).

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

20012000200122 is a wasteful number, since it uses less digits than its factorization.

20012000200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840711.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20012000200122 its reverse (22100200021002), we get a palindrome (42112200221124).

The spelling of 20012000200122 in words is "twenty trillion, twelve billion, two hundred thousand, one hundred twenty-two".