211012122236453 has 2 divisors, whose sum is σ = 211012122236454. Its totient is φ = 211012122236452.

The previous prime is 211012122236449. The next prime is 211012122236473. The reversal of 211012122236453 is 354632221210112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202095167776324 + 8916954460129 = 14216018^2 + 2986127^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012122236453 - 2² = 211012122236449 is a prime.

It is a super-2 number, since 2×211012122236453² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211012122236413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506061118226 + 105506061118227.

It is an arithmetic number, because the mean of its divisors is an integer number (105506061118227).

Almost surely, 2^{211012122236453} is an apocalyptic number.

It is an amenable number.

211012122236453 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012122236453 is an equidigital number, since it uses as much as digits as its factorization.

211012122236453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 211012122236453 its reverse (354632221210112), we get a palindrome (565644343446565).

The spelling of 211012122236453 in words is "two hundred eleven trillion, twelve billion, one hundred twenty-two million, two hundred thirty-six thousand, four hundred fifty-three".