220205474900 has 36 divisors (see below), whose sum is σ = 478138139388. Its totient is φ = 88028317440.

The previous prime is 220205474897. The next prime is 220205474917. The reversal of 220205474900 is 9474502022.

It can be written as a sum of positive squares in 6 ways, for example, as 92131675024 + 128073799876 = 303532^2 + 357874^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508889 + ... + 836288.

It is an arithmetic number, because the mean of its divisors is an integer number (13281614983).

Almost surely, 2^220205474900 is an apocalyptic number.

220205474900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220205474900 is an abundant number, since it is smaller than the sum of its proper divisors (257932664488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220205474900 is a wasteful number, since it uses less digits than its factorization.

220205474900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346828 (or 1346821 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 220205474900 its reverse (9474502022), we get a palindrome (229679976922).

The spelling of 220205474900 in words is "two hundred twenty billion, two hundred five million, four hundred seventy-four thousand, nine hundred".