21212120011322 has 8 divisors (see below), whose sum is σ = 31818833098272. Its totient is φ = 10605842311900.

The previous prime is 21212120011259. The next prime is 21212120011363. The reversal of 21212120011322 is 22311002121212.

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 = 21212120011294 and 21212120011303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108725054 + ... + 108919977.

It is an arithmetic number, because the mean of its divisors is an integer number (3977354137284).

Almost surely, 2^{21212120011322} is an apocalyptic number.

21212120011322 is a deficient number, since it is larger than the sum of its proper divisors (10606713086950).

21212120011322 is a wasteful number, since it uses less digits than its factorization.

21212120011322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217693764.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21212120011322 its reverse (22311002121212), we get a palindrome (43523122132534).

The spelling of 21212120011322 in words is "twenty-one trillion, two hundred twelve billion, one hundred twenty million, eleven thousand, three hundred twenty-two".