33333220001 has 4 divisors (see below), whose sum is σ = 33342750000. Its totient is φ = 33323690004.

The previous prime is 33333219977. The next prime is 33333220007. The reversal of 33333220001 is 10002233333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33333220001 - 2⁶ = 33333219937 is a prime.

It is a super-2 number, since 2×33333220001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33333220007) 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, 4759751 + ... + 4766748.

It is an arithmetic number, because the mean of its divisors is an integer number (8335687500).

Almost surely, 2^33333220001 is an apocalyptic number.

It is an amenable number.

33333220001 is a deficient number, since it is larger than the sum of its proper divisors (9529999).

33333220001 is an equidigital number, since it uses as much as digits as its factorization.

33333220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9529998.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 33333220001 its reverse (10002233333), we get a palindrome (43335453334).

The spelling of 33333220001 in words is "thirty-three billion, three hundred thirty-three million, two hundred twenty thousand, one".