211320122 has 8 divisors (see below), whose sum is σ = 341363316. Its totient is φ = 97532352.

The previous prime is 211320119. The next prime is 211320143. The reversal of 211320122 is 221023112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 194909521 + 16410601 = 13961^2 + 4051^2 .

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 = 211320097 and 211320106.

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, 4063823 + ... + 4063874.

Almost surely, 2^211320122 is an apocalyptic number.

211320122 is a deficient number, since it is larger than the sum of its proper divisors (130043194).

211320122 is a wasteful number, since it uses less digits than its factorization.

211320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127712.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 211320122 is about 14536.8539237347. The cubic root of 211320122 is about 595.6351027510.

Adding to 211320122 its reverse (221023112), we get a palindrome (432343234).

The spelling of 211320122 in words is "two hundred eleven million, three hundred twenty thousand, one hundred twenty-two".