2130012420221 has 8 divisors (see below), whose sum is σ = 2483979499200. Its totient is φ = 1825724931324.

The previous prime is 2130012420181. The next prime is 2130012420227. The reversal of 2130012420221 is 1220242100312.

It is a de Polignac number, because none of the positive numbers 2^k-2130012420221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130012420193 and 2130012420202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130012420227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3104974031 + ... + 3104974716.

It is an arithmetic number, because the mean of its divisors is an integer number (310497437400).

Almost surely, 2^{2130012420221} is an apocalyptic number.

It is an amenable number.

2130012420221 is a deficient number, since it is larger than the sum of its proper divisors (353967078979).

2130012420221 is an frugal number, since it uses more digits than its factorization.

2130012420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209948768 (or 6209948754 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2130012420221 its reverse (1220242100312), we get a palindrome (3350254520533).

The spelling of 2130012420221 in words is "two trillion, one hundred thirty billion, twelve million, four hundred twenty thousand, two hundred twenty-one".