100221026 has 16 divisors (see below), whose sum is σ = 152396640. Its totient is φ = 49427040.

The previous prime is 100221019. The next prime is 100221073. The reversal of 100221026 is 620122001.

It is a self number, because there is not a number n which added to its sum of digits gives 100221026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45830 + ... + 47966.

It is an arithmetic number, because the mean of its divisors is an integer number (9524790).

Almost surely, 2^100221026 is an apocalyptic number.

100221026 is a deficient number, since it is larger than the sum of its proper divisors (52175614).

100221026 is a wasteful number, since it uses less digits than its factorization.

100221026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 100221026 is about 10011.0452001777. The cubic root of 100221026 is about 464.5006023267.

Adding to 100221026 its reverse (620122001), we get a palindrome (720343027).

The spelling of 100221026 in words is "one hundred million, two hundred twenty-one thousand, twenty-six".