122421445 has 8 divisors (see below), whose sum is σ = 147002400. Its totient is φ = 97872720.

The previous prime is 122421443. The next prime is 122421457. The reversal of 122421445 is 544124221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122421445 - 2¹ = 122421443 is a prime.

It is a super-3 number, since 3×122421445³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122421443) 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, 1290 + ... + 15700.

It is an arithmetic number, because the mean of its divisors is an integer number (18375300).

Almost surely, 2^122421445 is an apocalyptic number.

It is an amenable number.

122421445 is a deficient number, since it is larger than the sum of its proper divisors (24580955).

122421445 is a wasteful number, since it uses less digits than its factorization.

122421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16115.

The product of its digits is 2560, while the sum is 25.

The square root of 122421445 is about 11064.4224883181. The cubic root of 122421445 is about 496.5380112588.

Adding to 122421445 its reverse (544124221), we get a palindrome (666545666).

The spelling of 122421445 in words is "one hundred twenty-two million, four hundred twenty-one thousand, four hundred forty-five".