420121322 has 8 divisors (see below), whose sum is σ = 632797572. Its totient is φ = 209188800.

The previous prime is 420121321. The next prime is 420121327. The reversal of 420121322 is 223121024.

It can be written as a sum of positive squares in 2 ways, for example, as 400840441 + 19280881 = 20021^2 + 4391^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 420121322.

It is not an unprimeable number, because it can be changed into a prime (420121321) 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, 435329 + ... + 436292.

Almost surely, 2^420121322 is an apocalyptic number.

420121322 is a deficient number, since it is larger than the sum of its proper divisors (212676250).

420121322 is a wasteful number, since it uses less digits than its factorization.

420121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871864.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420121322 is about 20496.8612719119. The cubic root of 420121322 is about 748.9593401113.

Adding to 420121322 its reverse (223121024), we get a palindrome (643242346).

It can be divided in two parts, 42012 and 1322, that added together give a palindrome (43334).

The spelling of 420121322 in words is "four hundred twenty million, one hundred twenty-one thousand, three hundred twenty-two".