421415122 has 8 divisors (see below), whose sum is σ = 632216700. Its totient is φ = 210676224.

The previous prime is 421415119. The next prime is 421415123. The reversal of 421415122 is 221514124.

It can be written as a sum of positive squares in 2 ways, for example, as 360278361 + 61136761 = 18981^2 + 7819^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 421415093 and 421415102.

It is not an unprimeable number, because it can be changed into a prime (421415123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8754 + ... + 30322.

Almost surely, 2^421415122 is an apocalyptic number.

421415122 is a deficient number, since it is larger than the sum of its proper divisors (210801578).

421415122 is a wasteful number, since it uses less digits than its factorization.

421415122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31340.

The product of its digits is 640, while the sum is 22.

The square root of 421415122 is about 20528.3979404142. The cubic root of 421415122 is about 749.7273806206.

Adding to 421415122 its reverse (221514124), we get a palindrome (642929246).

The spelling of 421415122 in words is "four hundred twenty-one million, four hundred fifteen thousand, one hundred twenty-two".