21202222333 has 8 divisors (see below), whose sum is σ = 22455067320. Its totient is φ = 19950005760.

The previous prime is 21202222331. The next prime is 21202222361. The reversal of 21202222333 is 33322220212.

It can be written as a sum of positive squares in 4 ways, for example, as 1540013049 + 19662209284 = 39243^2 + 140222^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21202222333 - 2¹ = 21202222331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202222331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86728 + ... + 223441.

It is an arithmetic number, because the mean of its divisors is an integer number (2806883415).

Almost surely, 2^21202222333 is an apocalyptic number.

It is an amenable number.

21202222333 is a deficient number, since it is larger than the sum of its proper divisors (1252844987).

21202222333 is a wasteful number, since it uses less digits than its factorization.

21202222333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314207.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21202222333 its reverse (33322220212), we get a palindrome (54524442545).

The spelling of 21202222333 in words is "twenty-one billion, two hundred two million, two hundred twenty-two thousand, three hundred thirty-three".