33312201320 has 16 divisors (see below), whose sum is σ = 74952453060. Its totient is φ = 13324880512.

The previous prime is 33312201289. The next prime is 33312201343. The reversal of 33312201320 is 2310221333.

It can be written as a sum of positive squares in 2 ways, for example, as 32985097924 + 327103396 = 181618^2 + 18086^2 .

It is a super-2 number, since 2×33312201320² (a number of 22 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 = 33312201292 and 33312201301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416402477 + ... + 416402556.

Almost surely, 2^33312201320 is an apocalyptic number.

It is an amenable number.

33312201320 is an abundant number, since it is smaller than the sum of its proper divisors (41640251740).

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

33312201320 is a wasteful number, since it uses less digits than its factorization.

33312201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832805044 (or 832805040 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33312201320 its reverse (2310221333), we get a palindrome (35622422653).

The spelling of 33312201320 in words is "thirty-three billion, three hundred twelve million, two hundred one thousand, three hundred twenty".