100220535 has 48 divisors (see below), whose sum is σ = 183980160. Its totient is φ = 50328000.

The previous prime is 100220513. The next prime is 100220537. The reversal of 100220535 is 535022001.

It is a happy number.

It is not a de Polignac number, because 100220535 - 2⁹ = 100220023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220537) 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 47 ways as a sum of consecutive naturals, for example, 214372 + ... + 214838.

It is an arithmetic number, because the mean of its divisors is an integer number (3832920).

Almost surely, 2^100220535 is an apocalyptic number.

100220535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100220535 is a deficient number, since it is larger than the sum of its proper divisors (83759625).

100220535 is a wasteful number, since it uses less digits than its factorization.

100220535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 100220535 is about 10011.0206772337. The cubic root of 100220535 is about 464.4998437694.

Adding to 100220535 its reverse (535022001), we get a palindrome (635242536).

The spelling of 100220535 in words is "one hundred million, two hundred twenty thousand, five hundred thirty-five".