100221310 has 16 divisors (see below), whose sum is σ = 206169696. Its totient is φ = 34361568.

The previous prime is 100221299. The next prime is 100221311. The reversal of 100221310 is 13122001.

It is a super-2 number, since 2×100221310² = 20088621956232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221311) 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, 715797 + ... + 715936.

It is an arithmetic number, because the mean of its divisors is an integer number (12885606).

Almost surely, 2^100221310 is an apocalyptic number.

100221310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100221310 is an abundant number, since it is smaller than the sum of its proper divisors (105948386).

100221310 is a wasteful number, since it uses less digits than its factorization.

100221310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431747.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100221310 is about 10011.0593845007. The cubic root of 100221310 is about 464.5010410838.

Adding to 100221310 its reverse (13122001), we get a palindrome (113343311).

The spelling of 100221310 in words is "one hundred million, two hundred twenty-one thousand, three hundred ten".