33122232220 has 96 divisors (see below), whose sum is σ = 91284318720. Its totient is φ = 9780445440.

The previous prime is 33122232203. The next prime is 33122232259. The reversal of 33122232220 is 2223222133.

It is a super-2 number, since 2×33122232220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 33122232191 and 33122232200.

It is a congruent number.

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, 536739 + ... + 595258.

It is an arithmetic number, because the mean of its divisors is an integer number (950878320).

Almost surely, 2^33122232220 is an apocalyptic number.

It is an amenable number.

33122232220 is an abundant number, since it is smaller than the sum of its proper divisors (58162086500).

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

33122232220 is a wasteful number, since it uses less digits than its factorization.

33122232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132043 (or 1132041 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 33122232220 its reverse (2223222133), we get a palindrome (35345454353).

The spelling of 33122232220 in words is "thirty-three billion, one hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty".