33221020120 has 32 divisors (see below), whose sum is σ = 74939482800. Its totient is φ = 13254241408.

The previous prime is 33221020111. The next prime is 33221020171. The reversal of 33221020120 is 2102012233.

It is a super-2 number, since 2×33221020120² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33221020094 and 33221020103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051954 + ... + 1083073.

Almost surely, 2^33221020120 is an apocalyptic number.

It is an amenable number.

33221020120 is an abundant number, since it is smaller than the sum of its proper divisors (41718462680).

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

33221020120 is a wasteful number, since it uses less digits than its factorization.

33221020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135427 (or 2135423 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 33221020120 its reverse (2102012233), we get a palindrome (35323032353).

The spelling of 33221020120 in words is "thirty-three billion, two hundred twenty-one million, twenty thousand, one hundred twenty".