122440512 has 28 divisors (see below), whose sum is σ = 323957696. Its totient is φ = 40813440.

The previous prime is 122440501. The next prime is 122440519. The reversal of 122440512 is 215044221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122440519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318664 + ... + 319047.

Almost surely, 2^122440512 is an apocalyptic number.

122440512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122440512 is an abundant number, since it is smaller than the sum of its proper divisors (201517184).

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

122440512 is an equidigital number, since it uses as much as digits as its factorization.

122440512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637726 (or 637716 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122440512 is about 11065.2840903431. The cubic root of 122440512 is about 496.5637883297.

Adding to 122440512 its reverse (215044221), we get a palindrome (337484733).

The spelling of 122440512 in words is "one hundred twenty-two million, four hundred forty thousand, five hundred twelve".