122421033555021 has 48 divisors (see below), whose sum is σ = 189015776277120. Its totient is φ = 76182276234240.

The previous prime is 122421033554971. The next prime is 122421033555061. The reversal of 122421033555021 is 120555330124221.

122421033555021 is a `hidden beast` number, since 1 + 2 + 2 + 42 + 10 + 3 + 35 + 550 + 21 = 666.

It is not a de Polignac number, because 122421033555021 - 2⁹ = 122421033554509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122421033555061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34910140 + ... + 38256501.

It is an arithmetic number, because the mean of its divisors is an integer number (3937828672440).

Almost surely, 2^{122421033555021} is an apocalyptic number.

It is an amenable number.

122421033555021 is a deficient number, since it is larger than the sum of its proper divisors (66594742722099).

122421033555021 is a wasteful number, since it uses less digits than its factorization.

122421033555021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73166866 (or 73166863 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 122421033555021 its reverse (120555330124221), we get a palindrome (242976363679242).

The spelling of 122421033555021 in words is "one hundred twenty-two trillion, four hundred twenty-one billion, thirty-three million, five hundred fifty-five thousand, twenty-one".