20012200133 has 16 divisors (see below), whose sum is σ = 20840448000. Its totient is φ = 19195671600.

The previous prime is 20012200099. The next prime is 20012200139. The reversal of 20012200133 is 33100221002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20012200133 - 2⁶ = 20012200069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012200139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5899868 + ... + 5903258.

It is an arithmetic number, because the mean of its divisors is an integer number (1302528000).

Almost surely, 2^20012200133 is an apocalyptic number.

It is an amenable number.

20012200133 is a deficient number, since it is larger than the sum of its proper divisors (828247867).

20012200133 is a wasteful number, since it uses less digits than its factorization.

20012200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20012200133 its reverse (33100221002), we get a palindrome (53112421135).

The spelling of 20012200133 in words is "twenty billion, twelve million, two hundred thousand, one hundred thirty-three".