420131322221 has 8 divisors (see below), whose sum is σ = 472120817280. Its totient is φ = 370952070192.

The previous prime is 420131322173. The next prime is 420131322223. The reversal of 420131322221 is 122223131024.

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

It is a cyclic number.

It is not a de Polignac number, because 420131322221 - 2¹⁸ = 420131060077 is a prime.

It is a super-2 number, since 2×420131322221² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420131322223) 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, 702560441 + ... + 702561038.

It is an arithmetic number, because the mean of its divisors is an integer number (59015102160).

Almost surely, 2^420131322221 is an apocalyptic number.

It is an amenable number.

420131322221 is a deficient number, since it is larger than the sum of its proper divisors (51989495059).

420131322221 is a wasteful number, since it uses less digits than its factorization.

420131322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405121515.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 420131322221 its reverse (122223131024), we get a palindrome (542354453245).

The spelling of 420131322221 in words is "four hundred twenty billion, one hundred thirty-one million, three hundred twenty-two thousand, two hundred twenty-one".