20033221012020 has 72 divisors (see below), whose sum is σ = 60770087239680. Its totient is φ = 5341959288000.

The previous prime is 20033221012019. The next prime is 20033221012043. The reversal of 20033221012020 is 2021012233002.

20033221012020 is a `hidden beast` number, since 2 + 0 + 0 + 332 + 210 + 120 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20033221011984 and 20033221012002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1731645 + ... + 6562395.

It is an arithmetic number, because the mean of its divisors is an integer number (844028989440).

Almost surely, 2^{20033221012020} is an apocalyptic number.

20033221012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20033221012020 is an abundant number, since it is smaller than the sum of its proper divisors (40736866227660).

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

20033221012020 is a wasteful number, since it uses less digits than its factorization.

20033221012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853805 (or 4853800 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20033221012020 its reverse (2021012233002), we get a palindrome (22054233245022).

The spelling of 20033221012020 in words is "twenty trillion, thirty-three billion, two hundred twenty-one million, twelve thousand, twenty".