122145353240 has 32 divisors (see below), whose sum is σ = 279332411760. Its totient is φ = 48057187200.

The previous prime is 122145353221. The next prime is 122145353249. The reversal of 122145353240 is 42353541221.

It is a junction number, because it is equal to n+sod(n) for n = 122145353197 and 122145353206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122145353249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25027346 + ... + 25032225.

Almost surely, 2^122145353240 is an apocalyptic number.

122145353240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122145353240 is an abundant number, since it is smaller than the sum of its proper divisors (157187058520).

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

122145353240 is a wasteful number, since it uses less digits than its factorization.

122145353240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50059643 (or 50059639 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 122145353240 its reverse (42353541221), we get a palindrome (164498894461).

The spelling of 122145353240 in words is "one hundred twenty-two billion, one hundred forty-five million, three hundred fifty-three thousand, two hundred forty".