33220123020 has 72 divisors (see below), whose sum is σ = 115163097504. Its totient is φ = 7593170688.

The previous prime is 33220122983. The next prime is 33220123061. The reversal of 33220123020 is 2032102233.

It is a happy number.

33220123020 is a `hidden beast` number, since 332 + 20 + 12 + 302 + 0 = 666.

It is a super-2 number, since 2×33220123020² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 33220122984 and 33220123002.

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, 13181329 + ... + 13183848.

Almost surely, 2^33220123020 is an apocalyptic number.

33220123020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33220123020 is an abundant number, since it is smaller than the sum of its proper divisors (81942974484).

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

33220123020 is a wasteful number, since it uses less digits than its factorization.

33220123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26365199 (or 26365194 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 33220123020 its reverse (2032102233), we get a palindrome (35252225253).

The spelling of 33220123020 in words is "thirty-three billion, two hundred twenty million, one hundred twenty-three thousand, twenty".