33001112221 has 16 divisors (see below), whose sum is σ = 41151306240. Its totient is φ = 25710738480.

The previous prime is 33001112191. The next prime is 33001112231. The reversal of 33001112221 is 12221110033.

It is not a de Polignac number, because 33001112221 - 2²³ = 32992723613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33001112195 and 33001112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33001112231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457590 + ... + 524776.

It is an arithmetic number, because the mean of its divisors is an integer number (2571956640).

Almost surely, 2^33001112221 is an apocalyptic number.

It is an amenable number.

33001112221 is a deficient number, since it is larger than the sum of its proper divisors (8150194019).

33001112221 is a wasteful number, since it uses less digits than its factorization.

33001112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73584.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 33001112221 its reverse (12221110033), we get a palindrome (45222222254).

The spelling of 33001112221 in words is "thirty-three billion, one million, one hundred twelve thousand, two hundred twenty-one".