33312222220 has 24 divisors (see below), whose sum is σ = 70069812624. Its totient is φ = 13303146816.

The previous prime is 33312222217. The next prime is 33312222227. The reversal of 33312222220 is 2222221333.

It is a super-2 number, since 2×33312222220² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33312222191 and 33312222200.

It is not an unprimeable number, because it can be changed into a prime (33312222227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346314 + ... + 1370833.

It is an arithmetic number, because the mean of its divisors is an integer number (2919575526).

Almost surely, 2^33312222220 is an apocalyptic number.

It is an amenable number.

33312222220 is an abundant number, since it is smaller than the sum of its proper divisors (36757590404).

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

33312222220 is a wasteful number, since it uses less digits than its factorization.

33312222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717769 (or 2717767 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 33312222220 its reverse (2222221333), we get a palindrome (35534443553).

The spelling of 33312222220 in words is "thirty-three billion, three hundred twelve million, two hundred twenty-two thousand, two hundred twenty".