33130223021 has 12 divisors (see below), whose sum is σ = 38914108128. Its totient is φ = 27629830512.

The previous prime is 33130223011. The next prime is 33130223041. The reversal of 33130223021 is 12032203133.

It is not a de Polignac number, because 33130223021 - 2²² = 33126028717 is a prime.

It is a super-2 number, since 2×33130223021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33130222984 and 33130223002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130223011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1719011 + ... + 1738176.

It is an arithmetic number, because the mean of its divisors is an integer number (3242842344).

Almost surely, 2^33130223021 is an apocalyptic number.

It is an amenable number.

33130223021 is a deficient number, since it is larger than the sum of its proper divisors (5783885107).

33130223021 is an equidigital number, since it uses as much as digits as its factorization.

33130223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457268 (or 3457231 counting only the distinct ones).

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

Adding to 33130223021 its reverse (12032203133), we get a palindrome (45162426154).

The spelling of 33130223021 in words is "thirty-three billion, one hundred thirty million, two hundred twenty-three thousand, twenty-one".