33221000120 has 96 divisors (see below), whose sum is σ = 93897468000. Its totient is φ = 10354586880.

The previous prime is 33221000077. The next prime is 33221000147. The reversal of 33221000120 is 2100012233.

It is a happy number.

It is a super-2 number, since 2×33221000120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 33221000095 and 33221000104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456395 + ... + 524154.

It is an arithmetic number, because the mean of its divisors is an integer number (978098625).

Almost surely, 2^33221000120 is an apocalyptic number.

It is an amenable number.

33221000120 is an abundant number, since it is smaller than the sum of its proper divisors (60676467880).

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

33221000120 is a wasteful number, since it uses less digits than its factorization.

33221000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980589 (or 980574 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 33221000120 its reverse (2100012233), we get a palindrome (35321012353).

The spelling of 33221000120 in words is "thirty-three billion, two hundred twenty-one million, one hundred twenty", and thus it is an aban number.