20221313333 has 4 divisors (see below), whose sum is σ = 21776798988. Its totient is φ = 18665827680.

The previous prime is 20221313327. The next prime is 20221313363. The reversal of 20221313333 is 33331312202.

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 1513365604 + 18707947729 = 38902^2 + 136777^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221313333 - 2⁶ = 20221313269 is a prime.

It is a super-2 number, since 2×20221313333² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221313299 and 20221313308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221313363) 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, 777742808 + ... + 777742833.

It is an arithmetic number, because the mean of its divisors is an integer number (5444199747).

Almost surely, 2^20221313333 is an apocalyptic number.

It is an amenable number.

20221313333 is a deficient number, since it is larger than the sum of its proper divisors (1555485655).

20221313333 is a wasteful number, since it uses less digits than its factorization.

20221313333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555485654.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20221313333 its reverse (33331312202), we get a palindrome (53552625535).

The spelling of 20221313333 in words is "twenty billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred thirty-three".