21202222334 has 16 divisors (see below), whose sum is σ = 33336681840. Its totient is φ = 10102021440.

The previous prime is 21202222331. The next prime is 21202222361. The reversal of 21202222334 is 43322220212.

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, 3003029 + ... + 3010080.

It is an arithmetic number, because the mean of its divisors is an integer number (2083542615).

Almost surely, 2^21202222334 is an apocalyptic number.

21202222334 is a deficient number, since it is larger than the sum of its proper divisors (12134459506).

21202222334 is a wasteful number, since it uses less digits than its factorization.

21202222334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013195.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21202222334 its reverse (43322220212), we get a palindrome (64524442546).

The spelling of 21202222334 in words is "twenty-one billion, two hundred two million, two hundred twenty-two thousand, three hundred thirty-four".