203220221222320 has 40 divisors (see below), whose sum is σ = 484011087870240. Its totient is φ = 79305452183040.

The previous prime is 203220221222237. The next prime is 203220221222353. The reversal of 203220221222320 is 23222122022302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×203220221222320² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30978688980 + ... + 30978695539.

It is an arithmetic number, because the mean of its divisors is an integer number (12100277196756).

Almost surely, 2^{203220221222320} is an apocalyptic number.

203220221222320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203220221222320 is an abundant number, since it is smaller than the sum of its proper divisors (280790866647920).

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

203220221222320 is a wasteful number, since it uses less digits than its factorization.

203220221222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61957384573 (or 61957384567 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 203220221222320 its reverse (23222122022302), we get a palindrome (226442343244622).

The spelling of 203220221222320 in words is "two hundred three trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, three hundred twenty".