1340830792221 has 16 divisors (see below), whose sum is σ = 1829680359936. Its totient is φ = 872941705776.

The previous prime is 1340830792181. The next prime is 1340830792267. The reversal of 1340830792221 is 1222970380431.

It is not a de Polignac number, because 1340830792221 - 2⁶ = 1340830792157 is a prime.

It is a super-2 number, since 2×1340830792221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340830792421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216585 + ... + 1651838.

It is an arithmetic number, because the mean of its divisors is an integer number (114355022496).

Almost surely, 2^{1340830792221} is an apocalyptic number.

It is an amenable number.

1340830792221 is a deficient number, since it is larger than the sum of its proper divisors (488849567715).

1340830792221 is a wasteful number, since it uses less digits than its factorization.

1340830792221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874032.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 1340830792221 in words is "one trillion, three hundred forty billion, eight hundred thirty million, seven hundred ninety-two thousand, two hundred twenty-one".