33221334420 has 72 divisors (see below), whose sum is σ = 100827417600. Its totient is φ = 8854096320.

The previous prime is 33221334401. The next prime is 33221334467. The reversal of 33221334420 is 2443312233.

33221334420 is a `hidden beast` number, since 3 + 3 + 2 + 213 + 3 + 442 + 0 = 666.

It is a super-2 number, since 2×33221334420² (a number of 22 digits) contains 22 as substring.

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, 279181 + ... + 379979.

It is an arithmetic number, because the mean of its divisors is an integer number (1400380800).

Almost surely, 2^33221334420 is an apocalyptic number.

33221334420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33221334420 is an abundant number, since it is smaller than the sum of its proper divisors (67606083180).

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

33221334420 is a wasteful number, since it uses less digits than its factorization.

33221334420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102645 (or 102640 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 33221334420 its reverse (2443312233), we get a palindrome (35664646653).

The spelling of 33221334420 in words is "thirty-three billion, two hundred twenty-one million, three hundred thirty-four thousand, four hundred twenty".