130222220221 has 4 divisors (see below), whose sum is σ = 130338803452. Its totient is φ = 130105636992.

The previous prime is 130222220207. The next prime is 130222220231. The reversal of 130222220221 is 122022222031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122022222031 = 79 ⋅1544585089.

It can be written as a sum of positive squares in 2 ways, for example, as 27559652121 + 102662568100 = 166011^2 + 320410^2 .

It is a cyclic number.

It is not a de Polignac number, because 130222220221 - 2¹¹ = 130222218173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130222220231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58289940 + ... + 58292173.

It is an arithmetic number, because the mean of its divisors is an integer number (32584700863).

Almost surely, 2^130222220221 is an apocalyptic number.

It is an amenable number.

130222220221 is a deficient number, since it is larger than the sum of its proper divisors (116583231).

130222220221 is a wasteful number, since it uses less digits than its factorization.

130222220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116583230.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 130222220221 its reverse (122022222031), we get a palindrome (252244442252).

The spelling of 130222220221 in words is "one hundred thirty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".