122138750146 has 24 divisors (see below), whose sum is σ = 218317703436. Its totient is φ = 51068465280.

The previous prime is 122138750141. The next prime is 122138750147. The reversal of 122138750146 is 641057831221.

It can be written as a sum of positive squares in 2 ways, for example, as 121546363225 + 592386921 = 348635^2 + 24339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122138750099 and 122138750108.

It is not an unprimeable number, because it can be changed into a prime (122138750141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15194931 + ... + 15202966.

Almost surely, 2^122138750146 is an apocalyptic number.

122138750146 is a deficient number, since it is larger than the sum of its proper divisors (96178953290).

122138750146 is a wasteful number, since it uses less digits than its factorization.

122138750146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30397954 (or 30397947 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 122138750146 in words is "one hundred twenty-two billion, one hundred thirty-eight million, seven hundred fifty thousand, one hundred forty-six".