122340213445 has 32 divisors (see below), whose sum is σ = 159270209280. Its totient is φ = 89970101760.

The previous prime is 122340213379. The next prime is 122340213461. The reversal of 122340213445 is 544312043221.

It is a de Polignac number, because none of the positive numbers 2^k-122340213445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122271 + ... + 509539.

It is an arithmetic number, because the mean of its divisors is an integer number (4977194040).

Almost surely, 2^122340213445 is an apocalyptic number.

It is an amenable number.

122340213445 is a deficient number, since it is larger than the sum of its proper divisors (36929995835).

122340213445 is a wasteful number, since it uses less digits than its factorization.

122340213445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387405.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 122340213445 its reverse (544312043221), we get a palindrome (666652256666).

The spelling of 122340213445 in words is "one hundred twenty-two billion, three hundred forty million, two hundred thirteen thousand, four hundred forty-five".