33220223120 has 80 divisors (see below), whose sum is σ = 88966115328. Its totient is φ = 11300083200.

The previous prime is 33220223117. The next prime is 33220223137. The reversal of 33220223120 is 2132202233.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×33220223120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33220223092 and 33220223101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162431 + ... + 304670.

Almost surely, 2^33220223120 is an apocalyptic number.

It is an amenable number.

33220223120 is an abundant number, since it is smaller than the sum of its proper divisors (55745892208).

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

33220223120 is a wasteful number, since it uses less digits than its factorization.

33220223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467248 (or 467242 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33220223120 its reverse (2132202233), we get a palindrome (35352425353).

The spelling of 33220223120 in words is "thirty-three billion, two hundred twenty million, two hundred twenty-three thousand, one hundred twenty".