100001021241 has 24 divisors (see below), whose sum is σ = 149676250752. Its totient is φ = 59317165600.

The previous prime is 100001021189. The next prime is 100001021273. The reversal of 100001021241 is 142120100001.

It is a happy number.

It is not a de Polignac number, because 100001021241 - 2¹¹ = 100001019193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100001021441) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2913630 + ... + 2947751.

It is an arithmetic number, because the mean of its divisors is an integer number (6236510448).

Almost surely, 2^100001021241 is an apocalyptic number.

100001021241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100001021241 is a deficient number, since it is larger than the sum of its proper divisors (49675229511).

100001021241 is a wasteful number, since it uses less digits than its factorization.

100001021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861453 (or 5861442 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100001021241 its reverse (142120100001), we get a palindrome (242121121242).

The spelling of 100001021241 in words is "one hundred billion, one million, twenty-one thousand, two hundred forty-one".