33020101 has 4 divisors (see below), whose sum is σ = 33165792. Its totient is φ = 32874412.

The previous prime is 33020089. The next prime is 33020107. The reversal of 33020101 is 10102033.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10102033 = 43 ⋅234931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33020101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33020107) 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, 72505 + ... + 72958.

It is an arithmetic number, because the mean of its divisors is an integer number (8291448).

Almost surely, 2^33020101 is an apocalyptic number.

It is an amenable number.

33020101 is a deficient number, since it is larger than the sum of its proper divisors (145691).

33020101 is a wasteful number, since it uses less digits than its factorization.

33020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145690.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 33020101 is about 5746.3119476757. The cubic root of 33020101 is about 320.8185456875.

Adding to 33020101 its reverse (10102033), we get a palindrome (43122134).

The spelling of 33020101 in words is "thirty-three million, twenty thousand, one hundred one".