33212403213 has 16 divisors (see below), whose sum is σ = 50409340416. Its totient is φ = 19253566640.

The previous prime is 33212403187. The next prime is 33212403239. The reversal of 33212403213 is 31230421233.

It is an interprime number because it is at equal distance from previous prime (33212403187) and next prime (33212403239).

It is not a de Polignac number, because 33212403213 - 2⁵ = 33212403181 is a prime.

It is a super-2 number, since 2×33212403213² (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 (33212403283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21878295 + ... + 21879812.

It is an arithmetic number, because the mean of its divisors is an integer number (3150583776).

Almost surely, 2^33212403213 is an apocalyptic number.

33212403213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

33212403213 is a deficient number, since it is larger than the sum of its proper divisors (17196937203).

33212403213 is a wasteful number, since it uses less digits than its factorization.

33212403213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43758144.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 33212403213 its reverse (31230421233), we get a palindrome (64442824446).

The spelling of 33212403213 in words is "thirty-three billion, two hundred twelve million, four hundred three thousand, two hundred thirteen".