2122400320340 has 24 divisors (see below), whose sum is σ = 4577501233032. Its totient is φ = 826015259520.

The previous prime is 2122400320301. The next prime is 2122400320363. The reversal of 2122400320340 is 430230042212.

It can be written as a sum of positive squares in 4 ways, for example, as 1049862538384 + 1072537781956 = 1024628^2 + 1035634^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1434053531 + ... + 1434055010.

It is an arithmetic number, because the mean of its divisors is an integer number (190729218043).

Almost surely, 2^{2122400320340} is an apocalyptic number.

2122400320340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122400320340 is an abundant number, since it is smaller than the sum of its proper divisors (2455100912692).

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

2122400320340 is a wasteful number, since it uses less digits than its factorization.

2122400320340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868108587 (or 2868108585 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 2122400320340 its reverse (430230042212), we get a palindrome (2552630362552).

The spelling of 2122400320340 in words is "two trillion, one hundred twenty-two billion, four hundred million, three hundred twenty thousand, three hundred forty".