20101200120092 has 96 divisors (see below), whose sum is σ = 45904201080192. Its totient is φ = 7474138914816.

The previous prime is 20101200120061. The next prime is 20101200120103. The reversal of 20101200120092 is 29002100210102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2319968 + ... + 6751640.

It is an arithmetic number, because the mean of its divisors is an integer number (478168761252).

Almost surely, 2^{20101200120092} 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 20101200120092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22952100540096).

20101200120092 is an abundant number, since it is smaller than the sum of its proper divisors (25803000960100).

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

20101200120092 is a wasteful number, since it uses less digits than its factorization.

20101200120092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432447 (or 4432445 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20101200120092 its reverse (29002100210102), we get a palindrome (49103300330194).

The spelling of 20101200120092 in words is "twenty trillion, one hundred one billion, two hundred million, one hundred twenty thousand, ninety-two".