33209222144 has 88 divisors (see below), whose sum is σ = 77003227200. Its totient is φ = 14019895296.

The previous prime is 33209222119. The next prime is 33209222153. The reversal of 33209222144 is 44122290233.

It is a super-2 number, since 2×33209222144² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 33209222144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445682 + ... + 514830.

Almost surely, 2^33209222144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33209222144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38501613600).

33209222144 is an abundant number, since it is smaller than the sum of its proper divisors (43794005056).

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

33209222144 is an equidigital number, since it uses as much as digits as its factorization.

33209222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69243 (or 69225 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 33209222144 in words is "thirty-three billion, two hundred nine million, two hundred twenty-two thousand, one hundred forty-four".