100001112221001 has 8 divisors (see below), whose sum is σ = 133888072794784. Its totient is φ = 66390779897280.

The previous prime is 100001112220931. The next prime is 100001112221009. The reversal of 100001112221001 is 100122211100001.

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

It is not a de Polignac number, because 100001112221001 - 2²² = 100001108026697 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 (100001112221009) 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, 69157061671 + ... + 69157063116.

It is an arithmetic number, because the mean of its divisors is an integer number (16736009099348).

Almost surely, 2^{100001112221001} is an apocalyptic number.

It is an amenable number.

100001112221001 is a deficient number, since it is larger than the sum of its proper divisors (33886960573783).

100001112221001 is a wasteful number, since it uses less digits than its factorization.

100001112221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138314125031.

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

Adding to 100001112221001 its reverse (100122211100001), we get a palindrome (200123323321002).

The spelling of 100001112221001 in words is "one hundred trillion, one billion, one hundred twelve million, two hundred twenty-one thousand, one".