212021120273 has 2 divisors, whose sum is σ = 212021120274. Its totient is φ = 212021120272.

The previous prime is 212021120263. The next prime is 212021120321. The reversal of 212021120273 is 372021120212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117078255889 + 94942864384 = 342167^2 + 308128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021120273 is a prime.

It is a super-3 number, since 3×212021120273³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (212021120263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010560136 + 106010560137.

It is an arithmetic number, because the mean of its divisors is an integer number (106010560137).

Almost surely, 2^212021120273 is an apocalyptic number.

It is an amenable number.

212021120273 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021120273 is an equidigital number, since it uses as much as digits as its factorization.

212021120273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 212021120273 its reverse (372021120212), we get a palindrome (584042240485).

The spelling of 212021120273 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred seventy-three".