33222242420 has 24 divisors (see below), whose sum is σ = 70316058624. Its totient is φ = 13184258976.

The previous prime is 33222242419. The next prime is 33222242437. The reversal of 33222242420 is 2424222233.

It is a super-2 number, since 2×33222242420² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33222242420.

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, 6537272 + ... + 6542351.

It is an arithmetic number, because the mean of its divisors is an integer number (2929835776).

Almost surely, 2^33222242420 is an apocalyptic number.

It is an amenable number.

33222242420 is an abundant number, since it is smaller than the sum of its proper divisors (37093816204).

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

33222242420 is a wasteful number, since it uses less digits than its factorization.

33222242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13079759 (or 13079757 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 33222242420 its reverse (2424222233), we get a palindrome (35646464653).

The spelling of 33222242420 in words is "thirty-three billion, two hundred twenty-two million, two hundred forty-two thousand, four hundred twenty".