2130212200340 has 48 divisors (see below), whose sum is σ = 5413245126912. Its totient is φ = 687396205056.

The previous prime is 2130212200309. The next prime is 2130212200349. The reversal of 2130212200340 is 430022120312.

It is a super-2 number, since 2×2130212200340² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130212200349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447521192 + ... + 447525951.

It is an arithmetic number, because the mean of its divisors is an integer number (112775940144).

Almost surely, 2^{2130212200340} is an apocalyptic number.

2130212200340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130212200340 is an abundant number, since it is smaller than the sum of its proper divisors (3283032926572).

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

2130212200340 is a wasteful number, since it uses less digits than its factorization.

2130212200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895047176 (or 895047174 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2130212200340 its reverse (430022120312), we get a palindrome (2560234320652).

The spelling of 2130212200340 in words is "two trillion, one hundred thirty billion, two hundred twelve million, two hundred thousand, three hundred forty".