10121020212100 has 216 divisors, whose sum is σ = 25915528800000. Its totient is φ = 3420341084160.

The previous prime is 10121020212067. The next prime is 10121020212143. The reversal of 10121020212100 is 121202012101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 231851076 + ... + 231894724.

It is an arithmetic number, because the mean of its divisors is an integer number (119979300000).

Almost surely, 2^{10121020212100} is an apocalyptic number.

10121020212100 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 10121020212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12957764400000).

10121020212100 is an abundant number, since it is smaller than the sum of its proper divisors (15794508587900).

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

10121020212100 is a wasteful number, since it uses less digits than its factorization.

10121020212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44355 (or 44341 counting only the distinct ones).

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

Adding to 10121020212100 its reverse (121202012101), we get a palindrome (10242222224201).

The spelling of 10121020212100 in words is "ten trillion, one hundred twenty-one billion, twenty million, two hundred twelve thousand, one hundred".