33220203013 has 4 divisors (see below), whose sum is σ = 35174332620. Its totient is φ = 31266073408.

The previous prime is 33220203007. The next prime is 33220203031. The reversal of 33220203013 is 31030202233.

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 20311380324 + 12908822689 = 142518^2 + 113617^2 .

It is a cyclic number.

It is not a de Polignac number, because 33220203013 - 2²¹ = 33218105861 is a prime.

It is a super-2 number, since 2×33220203013² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220203083) 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, 977064778 + ... + 977064811.

It is an arithmetic number, because the mean of its divisors is an integer number (8793583155).

Almost surely, 2^33220203013 is an apocalyptic number.

It is an amenable number.

33220203013 is a deficient number, since it is larger than the sum of its proper divisors (1954129607).

33220203013 is a wasteful number, since it uses less digits than its factorization.

33220203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954129606.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33220203013 its reverse (31030202233), we get a palindrome (64250405246).

The spelling of 33220203013 in words is "thirty-three billion, two hundred twenty million, two hundred three thousand, thirteen".