33220077 has 16 divisors (see below), whose sum is σ = 48520512. Its totient is φ = 20049920.

The previous prime is 33220067. The next prime is 33220093. The reversal of 33220077 is 77002233.

It is not a de Polignac number, because 33220077 - 2⁶ = 33220013 is a prime.

It is a super-2 number, since 2×33220077² = 2207147031771858, which contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6523 + ... + 10439.

It is an arithmetic number, because the mean of its divisors is an integer number (3032532).

Almost surely, 2^33220077 is an apocalyptic number.

It is an amenable number.

33220077 is a deficient number, since it is larger than the sum of its proper divisors (15300435).

33220077 is a wasteful number, since it uses less digits than its factorization.

33220077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 33220077 is about 5763.6860601528. The cubic root of 33220077 is about 321.4648886513.

The spelling of 33220077 in words is "thirty-three million, two hundred twenty thousand, seventy-seven".