122638247342 has 16 divisors (see below), whose sum is σ = 198973047840. Its totient is φ = 56355093792.

The previous prime is 122638247293. The next prime is 122638247351. The reversal of 122638247342 is 243742836221.

It is a super-2 number, since 2×122638247342² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122638247293 and 122638247302.

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, 10292858 + ... + 10304765.

It is an arithmetic number, because the mean of its divisors is an integer number (12435815490).

Almost surely, 2^122638247342 is an apocalyptic number.

122638247342 is a deficient number, since it is larger than the sum of its proper divisors (76334800498).

122638247342 is a wasteful number, since it uses less digits than its factorization.

122638247342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20597867.

The product of its digits is 774144, while the sum is 44.

The spelling of 122638247342 in words is "one hundred twenty-two billion, six hundred thirty-eight million, two hundred forty-seven thousand, three hundred forty-two".