100112221001 has 4 divisors (see below), whose sum is σ = 107813161092. Its totient is φ = 92411280912.

The previous prime is 100112220983. The next prime is 100112221007. The reversal of 100112221001 is 100122211001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68866355776 + 31245865225 = 262424^2 + 176765^2 .

It is a cyclic number.

It is not a de Polignac number, because 100112221001 - 2¹⁴ = 100112204617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100112221007) 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 3 ways as a sum of consecutive naturals, for example, 3850470026 + ... + 3850470051.

It is an arithmetic number, because the mean of its divisors is an integer number (26953290273).

Almost surely, 2^100112221001 is an apocalyptic number.

It is an amenable number.

100112221001 is a deficient number, since it is larger than the sum of its proper divisors (7700940091).

100112221001 is an equidigital number, since it uses as much as digits as its factorization.

100112221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700940090.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100112221001 its reverse (100122211001), we get a palindrome (200234432002).

The spelling of 100112221001 in words is "one hundred billion, one hundred twelve million, two hundred twenty-one thousand, one".