1033021220020 has 24 divisors (see below), whose sum is σ = 2244149548200. Its totient is φ = 398959919232.

The previous prime is 1033021220017. The next prime is 1033021220051. The reversal of 1033021220020 is 200221203301.

It can be written as a sum of positive squares in 4 ways, for example, as 40503172516 + 992518047504 = 201254^2 + 996252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1033021219976 and 1033021220003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890534955 + ... + 890536114.

It is an arithmetic number, because the mean of its divisors is an integer number (93506231175).

Almost surely, 2^{1033021220020} is an apocalyptic number.

1033021220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1033021220020 is an abundant number, since it is smaller than the sum of its proper divisors (1211128328180).

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

1033021220020 is a wasteful number, since it uses less digits than its factorization.

1033021220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781071107 (or 1781071105 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1033021220020 its reverse (200221203301), we get a palindrome (1233242423321).

The spelling of 1033021220020 in words is "one trillion, thirty-three billion, twenty-one million, two hundred twenty thousand, twenty".