21013462222 has 16 divisors (see below), whose sum is σ = 31576854960. Its totient is φ = 10487860992.

The previous prime is 21013462219. The next prime is 21013462271. The reversal of 21013462222 is 22226431012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3875029 + ... + 3880447.

It is an arithmetic number, because the mean of its divisors is an integer number (1973553435).

Almost surely, 2^21013462222 is an apocalyptic number.

21013462222 is a deficient number, since it is larger than the sum of its proper divisors (10563392738).

21013462222 is a wasteful number, since it uses less digits than its factorization.

21013462222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21013462222 its reverse (22226431012), we get a palindrome (43239893234).

The spelling of 21013462222 in words is "twenty-one billion, thirteen million, four hundred sixty-two thousand, two hundred twenty-two".