122421055 has 4 divisors (see below), whose sum is σ = 146905272. Its totient is φ = 97936840.

The previous prime is 122421037. The next prime is 122421059. The reversal of 122421055 is 550124221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122421055 - 2¹¹ = 122419007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122421059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12242101 + ... + 12242110.

It is an arithmetic number, because the mean of its divisors is an integer number (36726318).

Almost surely, 2^122421055 is an apocalyptic number.

122421055 is a deficient number, since it is larger than the sum of its proper divisors (24484217).

122421055 is an equidigital number, since it uses as much as digits as its factorization.

122421055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24484216.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 122421055 is about 11064.4048642482. The cubic root of 122421055 is about 496.5374839819.

Adding to 122421055 its reverse (550124221), we get a palindrome (672545276).

The spelling of 122421055 in words is "one hundred twenty-two million, four hundred twenty-one thousand, fifty-five".