10121220120100 has 72 divisors (see below), whose sum is σ = 22962990899520. Its totient is φ = 3864858391680.

The previous prime is 10121220120091. The next prime is 10121220120107. The reversal of 10121220120100 is 102102212101.

10121220120100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10121220120107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3152022 + ... + 5493421.

It is an arithmetic number, because the mean of its divisors is an integer number (318930429160).

Almost surely, 2^{10121220120100} is an apocalyptic number.

10121220120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121220120100 is an abundant number, since it is smaller than the sum of its proper divisors (12841770779420).

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

10121220120100 is a wasteful number, since it uses less digits than its factorization.

10121220120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645989 (or 8645982 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121220120100 its reverse (102102212101), we get a palindrome (10223322332201).

The spelling of 10121220120100 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty thousand, one hundred".