20002102112122 has 16 divisors (see below), whose sum is σ = 32311183951872. Its totient is φ = 9231712029360.

The previous prime is 20002102112119. The next prime is 20002102112123. The reversal of 20002102112122 is 22121120120002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20002102112096 and 20002102112105.

It is not an unprimeable number, because it can be changed into a prime (20002102112123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9741247 + ... + 11614477.

It is an arithmetic number, because the mean of its divisors is an integer number (2019448996992).

Almost surely, 2^{20002102112122} is an apocalyptic number.

20002102112122 is a deficient number, since it is larger than the sum of its proper divisors (12309081839750).

20002102112122 is a wasteful number, since it uses less digits than its factorization.

20002102112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283933.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20002102112122 its reverse (22121120120002), we get a palindrome (42123222232124).

The spelling of 20002102112122 in words is "twenty trillion, two billion, one hundred two million, one hundred twelve thousand, one hundred twenty-two".