122421316 has 24 divisors (see below), whose sum is σ = 216432216. Its totient is φ = 60587520.

The previous prime is 122421311. The next prime is 122421317. The reversal of 122421316 is 613124221.

It can be written as a sum of positive squares in 4 ways, for example, as 28408900 + 94012416 = 5330^2 + 9696^2 .

It is a super-3 number, since 3×122421316³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (122421311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265326 + ... + 265786.

It is an arithmetic number, because the mean of its divisors is an integer number (9018009).

Almost surely, 2^122421316 is an apocalyptic number.

It is an amenable number.

122421316 is a deficient number, since it is larger than the sum of its proper divisors (94010900).

122421316 is a wasteful number, since it uses less digits than its factorization.

122421316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 997 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 122421316 is about 11064.4166588212. The cubic root of 122421316 is about 496.5378368520.

Adding to 122421316 its reverse (613124221), we get a palindrome (735545537).

The spelling of 122421316 in words is "one hundred twenty-two million, four hundred twenty-one thousand, three hundred sixteen".