10111020012100 has 144 divisors (see below), whose sum is σ = 25183944846592. Its totient is φ = 3451637629440.

The previous prime is 10111020012053. The next prime is 10111020012103. The reversal of 10111020012100 is 121002011101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (10111020012103) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 280555282 + ... + 280591318.

Almost surely, 2^{10111020012100} is an apocalyptic number.

10111020012100 is a gapful number since it is divisible by the number (10) 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 10111020012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12591972423296).

10111020012100 is an abundant number, since it is smaller than the sum of its proper divisors (15072924834492).

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

10111020012100 is a wasteful number, since it uses less digits than its factorization.

10111020012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37782 (or 37775 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10111020012100 its reverse (121002011101), we get a palindrome (10232022023201).

The spelling of 10111020012100 in words is "ten trillion, one hundred eleven billion, twenty million, twelve thousand, one hundred".