20010200120192 has 128 divisors (see below), whose sum is σ = 40841908128000. Its totient is φ = 9761875329024.

The previous prime is 20010200120191. The next prime is 20010200120243. The reversal of 20010200120192 is 29102100201002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×20010200120192² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010200120191) 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, 1526440934 + ... + 1526454042.

It is an arithmetic number, because the mean of its divisors is an integer number (319077407250).

Almost surely, 2^{20010200120192} 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 20010200120192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20420954064000).

20010200120192 is an abundant number, since it is smaller than the sum of its proper divisors (20831708007808).

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

20010200120192 is a wasteful number, since it uses less digits than its factorization.

20010200120192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408 (or 14396 counting only the distinct ones).

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

Adding to 20010200120192 its reverse (29102100201002), we get a palindrome (49112300321194).

The spelling of 20010200120192 in words is "twenty trillion, ten billion, two hundred million, one hundred twenty thousand, one hundred ninety-two".