33221121211020 has 48 divisors (see below), whose sum is σ = 93264572540160. Its totient is φ = 8835591070656.

The previous prime is 33221121210923. The next prime is 33221121211081. The reversal of 33221121211020 is 2011212112233.

It is a super-2 number, since 2×33221121211020² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730432872 + ... + 730478351.

It is an arithmetic number, because the mean of its divisors is an integer number (1943011927920).

Almost surely, 2^{33221121211020} is an apocalyptic number.

33221121211020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33221121211020 is an abundant number, since it is smaller than the sum of its proper divisors (60043451329140).

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

33221121211020 is a wasteful number, since it uses less digits than its factorization.

33221121211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460911614 (or 1460911612 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 33221121211020 its reverse (2011212112233), we get a palindrome (35232333323253).

The spelling of 33221121211020 in words is "thirty-three trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, twenty".