20012001001122 has 32 divisors (see below), whose sum is σ = 43185502321920. Its totient is φ = 6145720064640.

The previous prime is 20012001001079. The next prime is 20012001001129. The reversal of 20012001001122 is 22110010021002.

It is a junction number, because it is equal to n+sod(n) for n = 20012001001098 and 20012001001107.

It is not an unprimeable number, because it can be changed into a prime (20012001001129) 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 15 ways as a sum of consecutive naturals, for example, 246182122 + ... + 246263397.

It is an arithmetic number, because the mean of its divisors is an integer number (1349546947560).

Almost surely, 2^{20012001001122} is an apocalyptic number.

20012001001122 is an abundant number, since it is smaller than the sum of its proper divisors (23173501320798).

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

20012001001122 is a wasteful number, since it uses less digits than its factorization.

20012001001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492446058.

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

Adding to 20012001001122 its reverse (22110010021002), we get a palindrome (42122011022124).

The spelling of 20012001001122 in words is "twenty trillion, twelve billion, one million, one thousand, one hundred twenty-two".