33102212220 has 384 divisors, whose sum is σ = 128972390400. Its totient is φ = 6847545600.

The previous prime is 33102212179. The next prime is 33102212251. The reversal of 33102212220 is 2221220133.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 33102212193 and 33102212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9935955 + ... + 9939285.

It is an arithmetic number, because the mean of its divisors is an integer number (335865600).

Almost surely, 2^33102212220 is an apocalyptic number.

33102212220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33102212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64486195200).

33102212220 is an abundant number, since it is smaller than the sum of its proper divisors (95870178180).

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

33102212220 is a wasteful number, since it uses less digits than its factorization.

33102212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 33102212220 its reverse (2221220133), we get a palindrome (35323432353).

The spelling of 33102212220 in words is "thirty-three billion, one hundred two million, two hundred twelve thousand, two hundred twenty".