20303311022220 has 96 divisors (see below), whose sum is σ = 61366529387520. Its totient is φ = 5000235708160.

The previous prime is 20303311022209. The next prime is 20303311022263. The reversal of 20303311022220 is 2222011330302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253624536 + ... + 253704575.

It is an arithmetic number, because the mean of its divisors is an integer number (639234681120).

Almost surely, 2^{20303311022220} is an apocalyptic number.

20303311022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303311022220 is an abundant number, since it is smaller than the sum of its proper divisors (41063218365300).

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

20303311022220 is a wasteful number, since it uses less digits than its factorization.

20303311022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507329175 (or 507329173 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20303311022220 its reverse (2222011330302), we get a palindrome (22525322352522).

The spelling of 20303311022220 in words is "twenty trillion, three hundred three billion, three hundred eleven million, twenty-two thousand, two hundred twenty".