130120221 has 32 divisors (see below), whose sum is σ = 217663488. Its totient is φ = 67170240.

The previous prime is 130120201. The next prime is 130120229. The reversal of 130120221 is 122021031.

It is not a de Polignac number, because 130120221 - 2⁷ = 130120093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130120197 and 130120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130120229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36891 + ... + 40263.

It is an arithmetic number, because the mean of its divisors is an integer number (6801984).

Almost surely, 2^130120221 is an apocalyptic number.

130120221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130120221 is a deficient number, since it is larger than the sum of its proper divisors (87543267).

130120221 is a wasteful number, since it uses less digits than its factorization.

130120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 130120221 is about 11407.0250722965. The cubic root of 130120221 is about 506.7358115371.

Adding to 130120221 its reverse (122021031), we get a palindrome (252141252).

The spelling of 130120221 in words is "one hundred thirty million, one hundred twenty thousand, two hundred twenty-one".