33020121060 has 72 divisors (see below), whose sum is σ = 101803051896. Its totient is φ = 8661012480.

The previous prime is 33020121023. The next prime is 33020121061. The reversal of 33020121060 is 6012102033.

It can be written as a sum of positive squares in 4 ways, for example, as 2192486976 + 30827634084 = 46824^2 + 175578^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33020121061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1492669 + ... + 1514628.

Almost surely, 2^33020121060 is an apocalyptic number.

33020121060 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33020121060 is an abundant number, since it is smaller than the sum of its proper divisors (68782930836).

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

33020121060 is a wasteful number, since it uses less digits than its factorization.

33020121060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007373 (or 3007368 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 33020121060 its reverse (6012102033), we get a palindrome (39032223093).

The spelling of 33020121060 in words is "thirty-three billion, twenty million, one hundred twenty-one thousand, sixty".