122154140320 has 72 divisors (see below), whose sum is σ = 304577619444. Its totient is φ = 46289968128.

The previous prime is 122154140239. The next prime is 122154140327. The reversal of 122154140320 is 23041451221.

It can be written as a sum of positive squares in 2 ways, for example, as 121742375056 + 411765264 = 348916^2 + 20292^2 .

It is not an unprimeable number, because it can be changed into a prime (122154140327) 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, 999669 + ... + 1115188.

Almost surely, 2^122154140320 is an apocalyptic number.

122154140320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122154140320 is an abundant number, since it is smaller than the sum of its proper divisors (182423479124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122154140320 is a wasteful number, since it uses less digits than its factorization.

122154140320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114910 (or 2114883 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 122154140320 its reverse (23041451221), we get a palindrome (145195591541).

The spelling of 122154140320 in words is "one hundred twenty-two billion, one hundred fifty-four million, one hundred forty thousand, three hundred twenty".