2130221421340 has 12 divisors (see below), whose sum is σ = 4473464984856. Its totient is φ = 852088568528.

The previous prime is 2130221421331. The next prime is 2130221421359. The reversal of 2130221421340 is 431241220312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53255535514 + ... + 53255535553.

It is an arithmetic number, because the mean of its divisors is an integer number (372788748738).

Almost surely, 2^{2130221421340} is an apocalyptic number.

2130221421340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130221421340 is an abundant number, since it is smaller than the sum of its proper divisors (2343243563516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130221421340 is a wasteful number, since it uses less digits than its factorization.

2130221421340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106511071076 (or 106511071074 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2130221421340 its reverse (431241220312), we get a palindrome (2561462641652).

The spelling of 2130221421340 in words is "two trillion, one hundred thirty billion, two hundred twenty-one million, four hundred twenty-one thousand, three hundred forty".