21113343322 has 4 divisors (see below), whose sum is σ = 31670014986. Its totient is φ = 10556671660.

The previous prime is 21113343289. The next prime is 21113343437. The reversal of 21113343322 is 22334331112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16814049561 + 4299293761 = 129669^2 + 65569^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278335829 + ... + 5278335832.

Almost surely, 2^21113343322 is an apocalyptic number.

21113343322 is a deficient number, since it is larger than the sum of its proper divisors (10556671664).

21113343322 is a wasteful number, since it uses less digits than its factorization.

21113343322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556671663.

The product of its digits is 2592, while the sum is 25.

Adding to 21113343322 its reverse (22334331112), we get a palindrome (43447674434).

It can be divided in two parts, 2111 and 3343322, that added together give a palindrome (3345433).

The spelling of 21113343322 in words is "twenty-one billion, one hundred thirteen million, three hundred forty-three thousand, three hundred twenty-two".