122421552 has 40 divisors (see below), whose sum is σ = 345007680. Its totient is φ = 37097280.

The previous prime is 122421527. The next prime is 122421583. The reversal of 122421552 is 255124221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115402 + ... + 116457.

It is an arithmetic number, because the mean of its divisors is an integer number (8625192).

Almost surely, 2^122421552 is an apocalyptic number.

122421552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122421552 is an abundant number, since it is smaller than the sum of its proper divisors (222586128).

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

122421552 is a wasteful number, since it uses less digits than its factorization.

122421552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231881 (or 231875 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 122421552 is about 11064.4273236350. The cubic root of 122421552 is about 496.5381559218.

Adding to 122421552 its reverse (255124221), we get a palindrome (377545773).

The spelling of 122421552 in words is "one hundred twenty-two million, four hundred twenty-one thousand, five hundred fifty-two".