130221001121 has 4 divisors (see below), whose sum is σ = 134711380500. Its totient is φ = 125730621744.

The previous prime is 130221001093. The next prime is 130221001123. The reversal of 130221001121 is 121100122031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105771300625 + 24449700496 = 325225^2 + 156364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130221001121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130221001096 and 130221001105.

It is not an unprimeable number, because it can be changed into a prime (130221001123) 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, 2245189646 + ... + 2245189703.

It is an arithmetic number, because the mean of its divisors is an integer number (33677845125).

Almost surely, 2^130221001121 is an apocalyptic number.

It is an amenable number.

130221001121 is a deficient number, since it is larger than the sum of its proper divisors (4490379379).

130221001121 is an equidigital number, since it uses as much as digits as its factorization.

130221001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490379378.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 130221001121 its reverse (121100122031), we get a palindrome (251321123152).

The spelling of 130221001121 in words is "one hundred thirty billion, two hundred twenty-one million, one thousand, one hundred twenty-one".