211122021222113 has 2 divisors, whose sum is σ = 211122021222114. Its totient is φ = 211122021222112.

The previous prime is 211122021222107. The next prime is 211122021222137. The reversal of 211122021222113 is 311222120221112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210371150447329 + 750870774784 = 14504177^2 + 866528^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122021222113 - 2¹⁴ = 211122021205729 is a prime.

It is not a weakly prime, because it can be changed into another prime (211122021222173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561010611056 + 105561010611057.

It is an arithmetic number, because the mean of its divisors is an integer number (105561010611057).

Almost surely, 2^{211122021222113} is an apocalyptic number.

It is an amenable number.

211122021222113 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122021222113 is an equidigital number, since it uses as much as digits as its factorization.

211122021222113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 211122021222113 its reverse (311222120221112), we get a palindrome (522344141443225).

The spelling of 211122021222113 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, one hundred thirteen".