20011100002122 has 64 divisors (see below), whose sum is σ = 41749678080000. Its totient is φ = 6389596519488.

The previous prime is 20011100002111. The next prime is 20011100002141. The reversal of 20011100002122 is 22120000111002.

It is a junction number, because it is equal to n+sod(n) for n = 20011100002098 and 20011100002107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257722 + ... + 6331557.

It is an arithmetic number, because the mean of its divisors is an integer number (652338720000).

Almost surely, 2^{20011100002122} is an apocalyptic number.

20011100002122 is an abundant number, since it is smaller than the sum of its proper divisors (21738578077878).

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

20011100002122 is a wasteful number, since it uses less digits than its factorization.

20011100002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589555.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20011100002122 its reverse (22120000111002), we get a palindrome (42131100113124).

The spelling of 20011100002122 in words is "twenty trillion, eleven billion, one hundred million, two thousand, one hundred twenty-two".