122742313421 has 32 divisors (see below), whose sum is σ = 159419823360. Its totient is φ = 91771232256.

The previous prime is 122742313417. The next prime is 122742313427. The reversal of 122742313421 is 124313247221.

It is a cyclic number.

It is not a de Polignac number, because 122742313421 - 2² = 122742313417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122742313427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 597005 + ... + 775821.

It is an arithmetic number, because the mean of its divisors is an integer number (4981869480).

Almost surely, 2^122742313421 is an apocalyptic number.

It is an amenable number.

122742313421 is a deficient number, since it is larger than the sum of its proper divisors (36677509939).

122742313421 is a wasteful number, since it uses less digits than its factorization.

122742313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179253.

The product of its digits is 16128, while the sum is 32.

The spelling of 122742313421 in words is "one hundred twenty-two billion, seven hundred forty-two million, three hundred thirteen thousand, four hundred twenty-one".