100021110100001 has 16 divisors (see below), whose sum is σ = 103181495205888. Its totient is φ = 96899072331600.

The previous prime is 100021110099997. The next prime is 100021110100007. The reversal of 100021110100001 is 100001011120001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100021110100001 - 2² = 100021110099997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100021110100007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17306786 + ... + 22350996.

It is an arithmetic number, because the mean of its divisors is an integer number (6448843450368).

Almost surely, 2^{100021110100001} is an apocalyptic number.

It is an amenable number.

100021110100001 is a deficient number, since it is larger than the sum of its proper divisors (3160385105887).

100021110100001 is a wasteful number, since it uses less digits than its factorization.

100021110100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048012.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 100021110100001 its reverse (100001011120001), we get a palindrome (200022121220002).

The spelling of 100021110100001 in words is "one hundred trillion, twenty-one billion, one hundred ten million, one hundred thousand, one".