12220100033 has 4 divisors (see below), whose sum is σ = 12220752468. Its totient is φ = 12219447600.

The previous prime is 12220100023. The next prime is 12220100047. The reversal of 12220100033 is 33000102221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8922124849 + 3297975184 = 94457^2 + 57428^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220100033 - 2²² = 12215905729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12220099990 and 12220100017.

It is not an unprimeable number, because it can be changed into a prime (12220100003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297266 + ... + 335867.

It is an arithmetic number, because the mean of its divisors is an integer number (3055188117).

Almost surely, 2^12220100033 is an apocalyptic number.

It is an amenable number.

12220100033 is a deficient number, since it is larger than the sum of its proper divisors (652435).

12220100033 is an equidigital number, since it uses as much as digits as its factorization.

12220100033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652434.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12220100033 its reverse (33000102221), we get a palindrome (45220202254).

The spelling of 12220100033 in words is "twelve billion, two hundred twenty million, one hundred thousand, thirty-three".