130821622 has 4 divisors (see below), whose sum is σ = 196232436. Its totient is φ = 65410810.

The previous prime is 130821601. The next prime is 130821623. The reversal of 130821622 is 226128031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226128031 = 577 ⋅391903.

It is a super-2 number, since 2×130821622² = 34228593565421768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130821623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32705404 + ... + 32705407.

It is an arithmetic number, because the mean of its divisors is an integer number (49058109).

Almost surely, 2^130821622 is an apocalyptic number.

130821622 is a deficient number, since it is larger than the sum of its proper divisors (65410814).

130821622 is an equidigital number, since it uses as much as digits as its factorization.

130821622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65410813.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 130821622 is about 11437.7280086563. The cubic root of 130821622 is about 507.6446845761.

Adding to 130821622 its reverse (226128031), we get a palindrome (356949653).

The spelling of 130821622 in words is "one hundred thirty million, eight hundred twenty-one thousand, six hundred twenty-two".