33020301220 has 24 divisors (see below), whose sum is σ = 73421611704. Its totient is φ = 12431172096.

The previous prime is 33020301211. The next prime is 33020301221. The reversal of 33020301220 is 2210302033.

It can be written as a sum of positive squares in 4 ways, for example, as 11344806144 + 21675495076 = 106512^2 + 147226^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33020301194 and 33020301203.

It is not an unprimeable number, because it can be changed into a prime (33020301221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48558927 + ... + 48559606.

It is an arithmetic number, because the mean of its divisors is an integer number (3059233821).

Almost surely, 2^33020301220 is an apocalyptic number.

It is an amenable number.

33020301220 is an abundant number, since it is smaller than the sum of its proper divisors (40401310484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33020301220 is a wasteful number, since it uses less digits than its factorization.

33020301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97118559 (or 97118557 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 33020301220 its reverse (2210302033), we get a palindrome (35230603253).

The spelling of 33020301220 in words is "thirty-three billion, twenty million, three hundred one thousand, two hundred twenty".