130021212001 has 4 divisors (see below), whose sum is σ = 134504702100. Its totient is φ = 125537721904.

The previous prime is 130021211981. The next prime is 130021212073. The reversal of 130021212001 is 100212120031.

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 73103181376 + 56918030625 = 270376^2 + 238575^2 .

It is a cyclic number.

It is not a de Polignac number, because 130021212001 - 2¹⁷ = 130021080929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130021215001) 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, 2241745006 + ... + 2241745063.

It is an arithmetic number, because the mean of its divisors is an integer number (33626175525).

Almost surely, 2^130021212001 is an apocalyptic number.

It is an amenable number.

130021212001 is a deficient number, since it is larger than the sum of its proper divisors (4483490099).

130021212001 is an equidigital number, since it uses as much as digits as its factorization.

130021212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483490098.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 130021212001 its reverse (100212120031), we get a palindrome (230233332032).

The spelling of 130021212001 in words is "one hundred thirty billion, twenty-one million, two hundred twelve thousand, one".