21122210211323 has 8 divisors (see below), whose sum is σ = 23275995510768. Its totient is φ = 19043996325984.

The previous prime is 21122210211281. The next prime is 21122210211371. The reversal of 21122210211323 is 32311201222112.

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

It is not a de Polignac number, because 21122210211323 - 2⁶ = 21122210211259 is a prime.

It is a super-2 number, since 2×21122210211323² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122210211383) 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, 18892852940 + ... + 18892854057.

It is an arithmetic number, because the mean of its divisors is an integer number (2909499438846).

Almost surely, 2^{21122210211323} is an apocalyptic number.

21122210211323 is a deficient number, since it is larger than the sum of its proper divisors (2153785299445).

21122210211323 is a wasteful number, since it uses less digits than its factorization.

21122210211323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37785707053.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21122210211323 its reverse (32311201222112), we get a palindrome (53433411433435).

The spelling of 21122210211323 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred ten million, two hundred eleven thousand, three hundred twenty-three".