220400204204 has 6 divisors (see below), whose sum is σ = 385700357364. Its totient is φ = 110200102100.

The previous prime is 220400204173. The next prime is 220400204267. The reversal of 220400204204 is 402402004022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550025522 + ... + 27550025529.

It is an arithmetic number, because the mean of its divisors is an integer number (64283392894).

Almost surely, 2^220400204204 is an apocalyptic number.

It is an amenable number.

220400204204 is a deficient number, since it is larger than the sum of its proper divisors (165300153160).

220400204204 is a wasteful number, since it uses less digits than its factorization.

220400204204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55100051055 (or 55100051053 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 220400204204 its reverse (402402004022), we get a palindrome (622802208226).

The spelling of 220400204204 in words is "two hundred twenty billion, four hundred million, two hundred four thousand, two hundred four".