33100220121 has 16 divisors (see below), whose sum is σ = 44221256640. Its totient is φ = 22023034880.

The previous prime is 33100220117. The next prime is 33100220159. The reversal of 33100220121 is 12102200133.

It is a cyclic number.

It is not a de Polignac number, because 33100220121 - 2² = 33100220117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33100220121.

It is not an unprimeable number, because it can be changed into a prime (33100290121) 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, 6080761 + ... + 6086201.

It is an arithmetic number, because the mean of its divisors is an integer number (2763828540).

Almost surely, 2^33100220121 is an apocalyptic number.

It is an amenable number.

33100220121 is a deficient number, since it is larger than the sum of its proper divisors (11121036519).

33100220121 is a wasteful number, since it uses less digits than its factorization.

33100220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9096.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 33100220121 its reverse (12102200133), we get a palindrome (45202420254).

The spelling of 33100220121 in words is "thirty-three billion, one hundred million, two hundred twenty thousand, one hundred twenty-one".