33021142209 has 32 divisors (see below), whose sum is σ = 53434846080. Its totient is φ = 19987560000.

The previous prime is 33021142199. The next prime is 33021142277. The reversal of 33021142209 is 90224112033.

It is a happy number.

It is not a de Polignac number, because 33021142209 - 2⁷ = 33021142081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (33021142009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166959 + ... + 306459.

It is an arithmetic number, because the mean of its divisors is an integer number (1669838940).

Almost surely, 2^33021142209 is an apocalyptic number.

It is an amenable number.

33021142209 is a deficient number, since it is larger than the sum of its proper divisors (20413703871).

33021142209 is a wasteful number, since it uses less digits than its factorization.

33021142209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140318 (or 140312 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 33021142209 in words is "thirty-three billion, twenty-one million, one hundred forty-two thousand, two hundred nine".