33230220001220 has 96 divisors (see below), whose sum is σ = 76886992941696. Its totient is φ = 11963166336000.

The previous prime is 33230220001213. The next prime is 33230220001273. The reversal of 33230220001220 is 2210002203233.

It is a super-2 number, since 2×33230220001220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33230220001192 and 33230220001201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337405904 + ... + 337504376.

It is an arithmetic number, because the mean of its divisors is an integer number (800906176476).

Almost surely, 2^{33230220001220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33230220001220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38443496470848).

33230220001220 is an abundant number, since it is smaller than the sum of its proper divisors (43656772940476).

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

33230220001220 is a wasteful number, since it uses less digits than its factorization.

33230220001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113781 (or 113779 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33230220001220 its reverse (2210002203233), we get a palindrome (35440222204453).

The spelling of 33230220001220 in words is "thirty-three trillion, two hundred thirty billion, two hundred twenty million, one thousand, two hundred twenty".