210130001220121 has 4 divisors (see below), whose sum is σ = 210138535135872. Its totient is φ = 210121467304372.

The previous prime is 210130001220089. The next prime is 210130001220203. The reversal of 210130001220121 is 121022100031012.

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 not a de Polignac number, because 210130001220121 - 2⁵ = 210130001220089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210130001220095 and 210130001220104.

It is not an unprimeable number, because it can be changed into a prime (210130001221121) 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, 4266920941 + ... + 4266970186.

It is an arithmetic number, because the mean of its divisors is an integer number (52534633783968).

Almost surely, 2^{210130001220121} is an apocalyptic number.

It is an amenable number.

210130001220121 is a deficient number, since it is larger than the sum of its proper divisors (8533915751).

210130001220121 is an equidigital number, since it uses as much as digits as its factorization.

210130001220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533915750.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210130001220121 its reverse (121022100031012), we get a palindrome (331152101251133).

The spelling of 210130001220121 in words is "two hundred ten trillion, one hundred thirty billion, one million, two hundred twenty thousand, one hundred twenty-one".