211310312322122 has 8 divisors (see below), whose sum is σ = 341347427597316. Its totient is φ = 97527836456352.

The previous prime is 211310312322107. The next prime is 211310312322173. The reversal of 211310312322122 is 221223213013112.

It can be written as a sum of positive squares in 2 ways, for example, as 178643246331001 + 32667065991121 = 13365749^2 + 5715511^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 8127319704697 = 211310312322122 / (2 + 1 + 1 + 3 + 1 + 0 + 3 + 1 + 2 + 3 + 2 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 211310312322091 and 211310312322100.

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, 4063659852323 + ... + 4063659852374.

Almost surely, 2^{211310312322122} is an apocalyptic number.

211310312322122 is a deficient number, since it is larger than the sum of its proper divisors (130037115275194).

211310312322122 is a wasteful number, since it uses less digits than its factorization.

211310312322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127319704712.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 211310312322122 its reverse (221223213013112), we get a palindrome (432533525335234).

The spelling of 211310312322122 in words is "two hundred eleven trillion, three hundred ten billion, three hundred twelve million, three hundred twenty-two thousand, one hundred twenty-two".