33043221420 has 48 divisors (see below), whose sum is σ = 100932023808. Its totient is φ = 8010477760.

The previous prime is 33043221413. The next prime is 33043221427. The reversal of 33043221420 is 2412234033.

It is an interprime number because it is at equal distance from previous prime (33043221413) and next prime (33043221427).

It is a super-2 number, since 2×33043221420² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33043221427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25032084 + ... + 25033403.

It is an arithmetic number, because the mean of its divisors is an integer number (2102750496).

Almost surely, 2^33043221420 is an apocalyptic number.

33043221420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33043221420 is an abundant number, since it is smaller than the sum of its proper divisors (67888802388).

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

33043221420 is a wasteful number, since it uses less digits than its factorization.

33043221420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50065510 (or 50065508 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 33043221420 its reverse (2412234033), we get a palindrome (35455455453).

The spelling of 33043221420 in words is "thirty-three billion, forty-three million, two hundred twenty-one thousand, four hundred twenty".