20110120100000 has 576 divisors, whose sum is σ = 58064832612864. Its totient is φ = 6713280000000.

The previous prime is 20110120099991. The next prime is 20110120100029. The reversal of 20110120100000 is 102101102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4312697669 + ... + 4312702331.

It is an arithmetic number, because the mean of its divisors is an integer number (100807001064).

Almost surely, 2^{20110120100000} is an apocalyptic number.

20110120100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110120100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29032416306432).

20110120100000 is an abundant number, since it is smaller than the sum of its proper divisors (37954712512864).

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

20110120100000 is an equidigital number, since it uses as much as digits as its factorization.

20110120100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867 (or 4839 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20110120100000 its reverse (102101102), we get a palindrome (20110222201102).

The spelling of 20110120100000 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, one hundred thousand".