33225146209 has 4 divisors (see below), whose sum is σ = 33645717760. Its totient is φ = 32804574660.

The previous prime is 33225146191. The next prime is 33225146219. The reversal of 33225146209 is 90264152233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33225146209 - 2⁵ = 33225146177 is a prime.

It is a super-2 number, since 2×33225146209² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33225146219) 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, 210285657 + ... + 210285814.

It is an arithmetic number, because the mean of its divisors is an integer number (8411429440).

Almost surely, 2^33225146209 is an apocalyptic number.

It is an amenable number.

33225146209 is a deficient number, since it is larger than the sum of its proper divisors (420571551).

33225146209 is an equidigital number, since it uses as much as digits as its factorization.

33225146209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420571550.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 33225146209 in words is "thirty-three billion, two hundred twenty-five million, one hundred forty-six thousand, two hundred nine".