130221100 has 36 divisors (see below), whose sum is σ = 286575408. Its totient is φ = 51352000.

The previous prime is 130221097. The next prime is 130221109. The reversal of 130221100 is 1122031.

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

It is not an unprimeable number, because it can be changed into a prime (130221109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2071 + ... + 16270.

It is an arithmetic number, because the mean of its divisors is an integer number (7960428).

Almost surely, 2^130221100 is an apocalyptic number.

130221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130221100 is an abundant number, since it is smaller than the sum of its proper divisors (156354308).

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

130221100 is a wasteful number, since it uses less digits than its factorization.

130221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18426 (or 18419 counting only the distinct ones).

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

The square root of 130221100 is about 11411.4460082848. The cubic root of 130221100 is about 506.8667309715.

Adding to 130221100 its reverse (1122031), we get a palindrome (131343131).

It can be divided in two parts, 130221 and 100, that added together give a 4-th power (130321 = 19⁴).

The spelling of 130221100 in words is "one hundred thirty million, two hundred twenty-one thousand, one hundred".