100514221 has 4 divisors (see below), whose sum is σ = 100656700. Its totient is φ = 100371744.

The previous prime is 100514201. The next prime is 100514231. The reversal of 100514221 is 122415001.

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 42068196 + 58446025 = 6486^2 + 7645^2 .

It is a cyclic number.

It is not a de Polignac number, because 100514221 - 2⁵ = 100514189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100514195 and 100514204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100514201) 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, 70176 + ... + 71593.

It is an arithmetic number, because the mean of its divisors is an integer number (25164175).

Almost surely, 2^100514221 is an apocalyptic number.

It is an amenable number.

100514221 is a deficient number, since it is larger than the sum of its proper divisors (142479).

100514221 is an equidigital number, since it uses as much as digits as its factorization.

100514221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142478.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 100514221 is about 10025.6780818057. The cubic root of 100514221 is about 464.9531243455.

Adding to 100514221 its reverse (122415001), we get a palindrome (222929222).

The spelling of 100514221 in words is "one hundred million, five hundred fourteen thousand, two hundred twenty-one".