100001220121101 has 8 divisors (see below), whose sum is σ = 143591495558560. Its totient is φ = 61539212382192.

The previous prime is 100001220121091. The next prime is 100001220121147. The reversal of 100001220121101 is 101121022100001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100001220121101 - 2⁷ = 100001220120973 is a prime.

It is a super-2 number, since 2×100001220121101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001220121301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282066924591 + ... + 1282066924668.

It is an arithmetic number, because the mean of its divisors is an integer number (17948936944820).

Almost surely, 2^{100001220121101} is an apocalyptic number.

It is an amenable number.

100001220121101 is a deficient number, since it is larger than the sum of its proper divisors (43590275437459).

100001220121101 is a wasteful number, since it uses less digits than its factorization.

100001220121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564133849275.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100001220121101 its reverse (101121022100001), we get a palindrome (201122242221102).

The spelling of 100001220121101 in words is "one hundred trillion, one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred one".