33221131033 has 4 divisors (see below), whose sum is σ = 33275325988. Its totient is φ = 33166936080.

The previous prime is 33221130983. The next prime is 33221131063. The reversal of 33221131033 is 33013112233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 529598169 + 32691532864 = 23013^2 + 180808^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221131033 - 2¹³ = 33221122841 is a prime.

It is a super-2 number, since 2×33221131033² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33221130995 and 33221131013.

It is not an unprimeable number, because it can be changed into a prime (33221131063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27096558 + ... + 27097783.

It is an arithmetic number, because the mean of its divisors is an integer number (8318831497).

Almost surely, 2^33221131033 is an apocalyptic number.

It is an amenable number.

33221131033 is a deficient number, since it is larger than the sum of its proper divisors (54194955).

33221131033 is an equidigital number, since it uses as much as digits as its factorization.

33221131033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54194954.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33221131033 its reverse (33013112233), we get a palindrome (66234243266).

The spelling of 33221131033 in words is "thirty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, thirty-three".