220202431 has 8 divisors (see below), whose sum is σ = 225993600. Its totient is φ = 214431360.

The previous prime is 220202413. The next prime is 220202443. The reversal of 220202431 is 134202022.

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 220202431 - 2¹³ = 220194239 is a prime.

It is a super-2 number, since 2×220202431² = 96978221236619522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202461) 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 7 ways as a sum of consecutive naturals, for example, 18610 + ... + 28048.

It is an arithmetic number, because the mean of its divisors is an integer number (28249200).

Almost surely, 2^220202431 is an apocalyptic number.

220202431 is a deficient number, since it is larger than the sum of its proper divisors (5791169).

220202431 is an equidigital number, since it uses as much as digits as its factorization.

220202431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10049.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220202431 is about 14839.2193527827. The cubic root of 220202431 is about 603.8661741359.

Adding to 220202431 its reverse (134202022), we get a palindrome (354404453).

The spelling of 220202431 in words is "two hundred twenty million, two hundred two thousand, four hundred thirty-one".