33533252220 has 48 divisors (see below), whose sum is σ = 101115655200. Its totient is φ = 8254338816.

The previous prime is 33533252119. The next prime is 33533252239. The reversal of 33533252220 is 2225233533.

It is a super-2 number, since 2×33533252220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21494895 + ... + 21496454.

It is an arithmetic number, because the mean of its divisors is an integer number (2106576150).

Almost surely, 2^33533252220 is an apocalyptic number.

33533252220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33533252220 is an abundant number, since it is smaller than the sum of its proper divisors (67582402980).

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

33533252220 is a wasteful number, since it uses less digits than its factorization.

33533252220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42991374 (or 42991372 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 33533252220 its reverse (2225233533), we get a palindrome (35758485753).

The spelling of 33533252220 in words is "thirty-three billion, five hundred thirty-three million, two hundred fifty-two thousand, two hundred twenty".