100022001 has 16 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 64791680.

The previous prime is 100021993. The next prime is 100022003. The reversal of 100022001 is 100220001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100022001 - 2³ = 100021993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31576 + ... + 34598.

It is an arithmetic number, because the mean of its divisors is an integer number (8573040).

Almost surely, 2^100022001 is an apocalyptic number.

It is an amenable number.

100022001 is a deficient number, since it is larger than the sum of its proper divisors (37146639).

100022001 is a wasteful number, since it uses less digits than its factorization.

100022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 100022001 is about 10001.0999895012. The cubic root of 100022001 is about 464.1929207305.

Adding to 100022001 its reverse (100220001), we get a palindrome (200242002).

The spelling of 100022001 in words is "one hundred million, twenty-two thousand, one".