10121200221100 has 72 divisors (see below), whose sum is σ = 22527853871600. Its totient is φ = 3945578169600.

The previous prime is 10121200221073. The next prime is 10121200221109. The reversal of 10121200221100 is 112200212101.

It is not an unprimeable number, because it can be changed into a prime (10121200221109) 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, 6946170 + ... + 8275969.

Almost surely, 2^{10121200221100} is an apocalyptic number.

10121200221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121200221100 is an abundant number, since it is smaller than the sum of its proper divisors (12406653650500).

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

10121200221100 is a wasteful number, since it uses less digits than its factorization.

10121200221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15222323 (or 15222316 counting only the distinct ones).

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

Adding to 10121200221100 its reverse (112200212101), we get a palindrome (10233400433201).

The spelling of 10121200221100 in words is "ten trillion, one hundred twenty-one billion, two hundred million, two hundred twenty-one thousand, one hundred".