21110251322 has 8 divisors (see below), whose sum is σ = 33042132576. Its totient is φ = 10096207132.

The previous prime is 21110251307. The next prime is 21110251343. The reversal of 21110251322 is 22315201112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21110251294 and 21110251303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229459208 + ... + 229459299.

It is an arithmetic number, because the mean of its divisors is an integer number (4130266572).

Almost surely, 2^21110251322 is an apocalyptic number.

21110251322 is a deficient number, since it is larger than the sum of its proper divisors (11931881254).

21110251322 is a wasteful number, since it uses less digits than its factorization.

21110251322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458918532.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 21110251322 its reverse (22315201112), we get a palindrome (43425452434).

The spelling of 21110251322 in words is "twenty-one billion, one hundred ten million, two hundred fifty-one thousand, three hundred twenty-two".