33220133012 has 24 divisors (see below), whose sum is σ = 65607161760. Its totient is φ = 14579368160.

The previous prime is 33220132997. The next prime is 33220133017. The reversal of 33220133012 is 21033102233.

It is a super-2 number, since 2×33220133012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220133017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13016018 + ... + 13018569.

It is an arithmetic number, because the mean of its divisors is an integer number (2733631740).

Almost surely, 2^33220133012 is an apocalyptic number.

It is an amenable number.

33220133012 is a deficient number, since it is larger than the sum of its proper divisors (32387028748).

33220133012 is a wasteful number, since it uses less digits than its factorization.

33220133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26034631 (or 26034629 counting only the distinct ones).

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

Adding to 33220133012 its reverse (21033102233), we get a palindrome (54253235245).

The spelling of 33220133012 in words is "thirty-three billion, two hundred twenty million, one hundred thirty-three thousand, twelve".