100001210220121 has 8 divisors (see below), whose sum is σ = 114361746065984. Its totient is φ = 85659336542160.

The previous prime is 100001210220071. The next prime is 100001210220281. The reversal of 100001210220121 is 121022012100001.

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

It is a cyclic number.

It is not a de Polignac number, because 100001210220121 - 2³⁵ = 99966850481753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100001210520121) 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, 4665530490 + ... + 4665551923.

It is an arithmetic number, because the mean of its divisors is an integer number (14295218258248).

Almost surely, 2^{100001210220121} is an apocalyptic number.

It is an amenable number.

100001210220121 is a deficient number, since it is larger than the sum of its proper divisors (14360535845863).

100001210220121 is an equidigital number, since it uses as much as digits as its factorization.

100001210220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331083951.

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

Adding to 100001210220121 its reverse (121022012100001), we get a palindrome (221023222320122).

The spelling of 100001210220121 in words is "one hundred trillion, one billion, two hundred ten million, two hundred twenty thousand, one hundred twenty-one".