122438712 has 64 divisors (see below), whose sum is σ = 339442560. Its totient is φ = 36489600.

The previous prime is 122438711. The next prime is 122438731. The reversal of 122438712 is 217834221.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 122438712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122438711) 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 15 ways as a sum of consecutive naturals, for example, 12303 + ... + 19905.

It is an arithmetic number, because the mean of its divisors is an integer number (5303790).

Almost surely, 2^122438712 is an apocalyptic number.

122438712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122438712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169721280).

122438712 is an abundant number, since it is smaller than the sum of its proper divisors (217003848).

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

122438712 is a wasteful number, since it uses less digits than its factorization.

122438712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684 (or 7680 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 122438712 is about 11065.2027545816. The cubic root of 122438712 is about 496.5613549869.

It can be divided in two parts, 122 and 438712, that added together give a palindrome (438834).

The spelling of 122438712 in words is "one hundred twenty-two million, four hundred thirty-eight thousand, seven hundred twelve".