130031203212221 has 4 divisors (see below), whose sum is σ = 130032006120192. Its totient is φ = 130030400304252.

The previous prime is 130031203212203. The next prime is 130031203212223. The reversal of 130031203212221 is 122212302130031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130031203212221 is a prime.

It is a super-2 number, since 2×130031203212221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130031203212223) 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, 401211011 + ... + 401534976.

It is an arithmetic number, because the mean of its divisors is an integer number (32508001530048).

Almost surely, 2^{130031203212221} is an apocalyptic number.

It is an amenable number.

130031203212221 is a deficient number, since it is larger than the sum of its proper divisors (802907971).

130031203212221 is an equidigital number, since it uses as much as digits as its factorization.

130031203212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802907970.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 130031203212221 its reverse (122212302130031), we get a palindrome (252243505342252).

The spelling of 130031203212221 in words is "one hundred thirty trillion, thirty-one billion, two hundred three million, two hundred twelve thousand, two hundred twenty-one".