33211023012 has 18 divisors (see below), whose sum is σ = 83950086038. Its totient is φ = 11070340992.

The previous prime is 33211022947. The next prime is 33211023019. The reversal of 33211023012 is 21032011233.

It can be written as a sum of positive squares in only one way, i.e., 27345913956 + 5865109056 = 165366^2 + 76584^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×33211023012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33211023019) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 461264173 + ... + 461264244.

Almost surely, 2^33211023012 is an apocalyptic number.

It is an amenable number.

33211023012 is an abundant number, since it is smaller than the sum of its proper divisors (50739063026).

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

33211023012 is a wasteful number, since it uses less digits than its factorization.

33211023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922528427 (or 922528422 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 33211023012 its reverse (21032011233), we get a palindrome (54243034245).

The spelling of 33211023012 in words is "thirty-three billion, two hundred eleven million, twenty-three thousand, twelve".