130221402 has 32 divisors (see below), whose sum is σ = 274752000. Its totient is φ = 41032368.

The previous prime is 130221379. The next prime is 130221409. The reversal of 130221402 is 204122031.

It is a super-2 number, since 2×130221402² = 33915227077691208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130221409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67333 + ... + 69239.

It is an arithmetic number, because the mean of its divisors is an integer number (8586000).

Almost surely, 2^130221402 is an apocalyptic number.

130221402 is an abundant number, since it is smaller than the sum of its proper divisors (144530598).

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

130221402 is a wasteful number, since it uses less digits than its factorization.

130221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 130221402 is about 11411.4592406055. The cubic root of 130221402 is about 506.8671228015.

Adding to 130221402 its reverse (204122031), we get a palindrome (334343433).

The spelling of 130221402 in words is "one hundred thirty million, two hundred twenty-one thousand, four hundred two".