33300100101221 has 2 divisors, whose sum is σ = 33300100101222. Its totient is φ = 33300100101220.

The previous prime is 33300100101211. The next prime is 33300100101239. The reversal of 33300100101221 is 12210100100333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32815551852196 + 484548249025 = 5728486^2 + 696095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33300100101221 is a prime.

It is a super-2 number, since 2×33300100101221² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33300100101221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33300100101211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16650050050610 + 16650050050611.

It is an arithmetic number, because the mean of its divisors is an integer number (16650050050611).

Almost surely, 2^{33300100101221} is an apocalyptic number.

It is an amenable number.

33300100101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33300100101221 is an equidigital number, since it uses as much as digits as its factorization.

33300100101221 is an evil number, because the sum of its binary digits is even.

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

Adding to 33300100101221 its reverse (12210100100333), we get a palindrome (45510200201554).

The spelling of 33300100101221 in words is "thirty-three trillion, three hundred billion, one hundred million, one hundred one thousand, two hundred twenty-one".