130221004515215 has 4 divisors (see below), whose sum is σ = 156265205418264. Its totient is φ = 104176803612168.

The previous prime is 130221004515211. The next prime is 130221004515263. The reversal of 130221004515215 is 512515400122031.

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

It is a cyclic number.

It is not a de Polignac number, because 130221004515215 - 2² = 130221004515211 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 (130221004515211) 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, 13022100451517 + ... + 13022100451526.

It is an arithmetic number, because the mean of its divisors is an integer number (39066301354566).

Almost surely, 2^{130221004515215} is an apocalyptic number.

130221004515215 is a deficient number, since it is larger than the sum of its proper divisors (26044200903049).

130221004515215 is an equidigital number, since it uses as much as digits as its factorization.

130221004515215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26044200903048.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 130221004515215 its reverse (512515400122031), we get a palindrome (642736404637246).

The spelling of 130221004515215 in words is "one hundred thirty trillion, two hundred twenty-one billion, four million, five hundred fifteen thousand, two hundred fifteen".