33220023252 has 48 divisors (see below), whose sum is σ = 84481723200. Its totient is φ = 10098390528.

The previous prime is 33220023157. The next prime is 33220023253. The reversal of 33220023252 is 25232002233.

It is a super-2 number, since 2×33220023252² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220023253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269877 + ... + 1295772.

It is an arithmetic number, because the mean of its divisors is an integer number (1760035900).

Almost surely, 2^33220023252 is an apocalyptic number.

It is an amenable number.

33220023252 is an abundant number, since it is smaller than the sum of its proper divisors (51261699948).

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

33220023252 is a wasteful number, since it uses less digits than its factorization.

33220023252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565752 (or 2565750 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 33220023252 its reverse (25232002233), we get a palindrome (58452025485).

The spelling of 33220023252 in words is "thirty-three billion, two hundred twenty million, twenty-three thousand, two hundred fifty-two".