122421124221 has 32 divisors (see below), whose sum is σ = 183094674048. Its totient is φ = 72104509440.

The previous prime is 122421124219. The next prime is 122421124223.

122421124221 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (122421124219) and next prime (122421124223).

It is not a de Polignac number, because 122421124221 - 2¹ = 122421124219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122421124191 and 122421124200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122421124223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 987901 + ... + 1104893.

It is an arithmetic number, because the mean of its divisors is an integer number (5721708564).

Almost surely, 2^122421124221 is an apocalyptic number.

122421124221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122421124221 is a deficient number, since it is larger than the sum of its proper divisors (60673549827).

122421124221 is a wasteful number, since it uses less digits than its factorization.

122421124221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117901.

The product of its digits is 1024, while the sum is 24.

It can be divided in two parts, 122421 and 124221, that added together give a palindrome (246642).

The spelling of 122421124221 in words is "one hundred twenty-two billion, four hundred twenty-one million, one hundred twenty-four thousand, two hundred twenty-one".