100220946 has 32 divisors (see below), whose sum is σ = 230737920. Its totient is φ = 28426896.

The previous prime is 100220927. The next prime is 100220969. The reversal of 100220946 is 649022001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2746 + ... + 14421.

It is an arithmetic number, because the mean of its divisors is an integer number (7210560).

Almost surely, 2^100220946 is an apocalyptic number.

100220946 is an abundant number, since it is smaller than the sum of its proper divisors (130516974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100220946 is a wasteful number, since it uses less digits than its factorization.

100220946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17318.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 100220946 is about 10011.0412045901. The cubic root of 100220946 is about 464.5004787330.

Adding to 100220946 its reverse (649022001), we get a palindrome (749242947).

The spelling of 100220946 in words is "one hundred million, two hundred twenty thousand, nine hundred forty-six".