33103101221 has 16 divisors (see below), whose sum is σ = 34526701440. Its totient is φ = 31699174080.

The previous prime is 33103101211. The next prime is 33103101263. The reversal of 33103101221 is 12210130133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33103101221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33103101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33103101211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2225210 + ... + 2240036.

It is an arithmetic number, because the mean of its divisors is an integer number (2157918840).

Almost surely, 2^33103101221 is an apocalyptic number.

It is an amenable number.

33103101221 is a deficient number, since it is larger than the sum of its proper divisors (1423600219).

33103101221 is a wasteful number, since it uses less digits than its factorization.

33103101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15484.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 33103101221 its reverse (12210130133), we get a palindrome (45313231354).

The spelling of 33103101221 in words is "thirty-three billion, one hundred three million, one hundred one thousand, two hundred twenty-one".