122690148238 has 32 divisors (see below), whose sum is σ = 211832064000. Its totient is φ = 52205342400.

The previous prime is 122690148209. The next prime is 122690148239. The reversal of 122690148238 is 832841096221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122690148239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4211370 + ... + 4240402.

It is an arithmetic number, because the mean of its divisors is an integer number (6619752000).

Almost surely, 2^122690148238 is an apocalyptic number.

122690148238 is a deficient number, since it is larger than the sum of its proper divisors (89141915762).

122690148238 is a wasteful number, since it uses less digits than its factorization.

122690148238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31192.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 122690148238 in words is "one hundred twenty-two billion, six hundred ninety million, one hundred forty-eight thousand, two hundred thirty-eight".