122140419243 has 4 divisors (see below), whose sum is σ = 162853892328. Its totient is φ = 81426946160.

The previous prime is 122140419241. The next prime is 122140419263. The reversal of 122140419243 is 342914041221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342914041221 = 3 ⋅114304680407.

It is a cyclic number.

It is not a de Polignac number, because 122140419243 - 2¹ = 122140419241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122140419241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20356736538 + ... + 20356736543.

It is an arithmetic number, because the mean of its divisors is an integer number (40713473082).

Almost surely, 2^122140419243 is an apocalyptic number.

122140419243 is a deficient number, since it is larger than the sum of its proper divisors (40713473085).

122140419243 is an equidigital number, since it uses as much as digits as its factorization.

122140419243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40713473084.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 122140419243 in words is "one hundred twenty-two billion, one hundred forty million, four hundred nineteen thousand, two hundred forty-three".