20011122201012 has 96 divisors (see below), whose sum is σ = 49404189542400. Its totient is φ = 6286720003200.

The previous prime is 20011122200959. The next prime is 20011122201041. The reversal of 20011122201012 is 21010222111002.

It is a super-3 number, since 3×20011122201012³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20011122200982 and 20011122201000.

It is a congruent number.

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, 34169337 + ... + 34750047.

It is an arithmetic number, because the mean of its divisors is an integer number (514626974400).

Almost surely, 2^{20011122201012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20011122201012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24702094771200).

20011122201012 is an abundant number, since it is smaller than the sum of its proper divisors (29393067341388).

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

20011122201012 is a wasteful number, since it uses less digits than its factorization.

20011122201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581517 (or 581515 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20011122201012 its reverse (21010222111002), we get a palindrome (41021344312014).

The spelling of 20011122201012 in words is "twenty trillion, eleven billion, one hundred twenty-two million, two hundred one thousand, twelve".