33021224040 has 128 divisors (see below), whose sum is σ = 119174400000. Its totient is φ = 7150457088.

The previous prime is 33021224023. The next prime is 33021224051. The reversal of 33021224040 is 4042212033.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 33021223998 and 33021224016.

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, 1018540 + ... + 1050459.

It is an arithmetic number, because the mean of its divisors is an integer number (931050000).

Almost surely, 2^33021224040 is an apocalyptic number.

33021224040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33021224040 is an abundant number, since it is smaller than the sum of its proper divisors (86153175960).

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

33021224040 is a wasteful number, since it uses less digits than its factorization.

33021224040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069039 (or 2069035 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 33021224040 its reverse (4042212033), we get a palindrome (37063436073).

The spelling of 33021224040 in words is "thirty-three billion, twenty-one million, two hundred twenty-four thousand, forty".