211121012273 has 2 divisors, whose sum is σ = 211121012274. Its totient is φ = 211121012272.

The previous prime is 211121012147. The next prime is 211121012279. The reversal of 211121012273 is 372210121112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175153131169 + 35967881104 = 418513^2 + 189652^2 .

It is a cyclic number.

It is not a de Polignac number, because 211121012273 - 2³⁴ = 193941143089 is a prime.

It is not a weakly prime, because it can be changed into another prime (211121012279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560506136 + 105560506137.

It is an arithmetic number, because the mean of its divisors is an integer number (105560506137).

Almost surely, 2^211121012273 is an apocalyptic number.

It is an amenable number.

211121012273 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121012273 is an equidigital number, since it uses as much as digits as its factorization.

211121012273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 211121012273 its reverse (372210121112), we get a palindrome (583331133385).

The spelling of 211121012273 in words is "two hundred eleven billion, one hundred twenty-one million, twelve thousand, two hundred seventy-three".