122361602378 has 4 divisors (see below), whose sum is σ = 183542403570. Its totient is φ = 61180801188.

The previous prime is 122361602333. The next prime is 122361602401. The reversal of 122361602378 is 873206163221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873206163221 = 7 ⋅124743737603.

It can be written as a sum of positive squares in only one way, i.e., 103894694929 + 18466907449 = 322327^2 + 135893^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30590400593 + ... + 30590400596.

Almost surely, 2^122361602378 is an apocalyptic number.

122361602378 is a deficient number, since it is larger than the sum of its proper divisors (61180801192).

122361602378 is an equidigital number, since it uses as much as digits as its factorization.

122361602378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61180801191.

The product of its (nonzero) digits is 145152, while the sum is 41.

Adding to 122361602378 its reverse (873206163221), we get a palindrome (995567765599).

The spelling of 122361602378 in words is "one hundred twenty-two billion, three hundred sixty-one million, six hundred two thousand, three hundred seventy-eight".