122204512 has 48 divisors (see below), whose sum is σ = 247568832. Its totient is φ = 59351040.

The previous prime is 122204479. The next prime is 122204513. The reversal of 122204512 is 215402221.

It is a self number, because there is not a number n which added to its sum of digits gives 122204512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122204513) 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 7 ways as a sum of consecutive naturals, for example, 290062 + ... + 290482.

It is an arithmetic number, because the mean of its divisors is an integer number (5157684).

Almost surely, 2^122204512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122204512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123784416).

122204512 is an abundant number, since it is smaller than the sum of its proper divisors (125364320).

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

122204512 is a wasteful number, since it uses less digits than its factorization.

122204512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 122204512 is about 11054.6149638963. The cubic root of 122204512 is about 496.2445464232.

Adding to 122204512 its reverse (215402221), we get a palindrome (337606733).

The spelling of 122204512 in words is "one hundred twenty-two million, two hundred four thousand, five hundred twelve".