211213102221211 has 2 divisors, whose sum is σ = 211213102221212. Its totient is φ = 211213102221210.

The previous prime is 211213102221197. The next prime is 211213102221241. The reversal of 211213102221211 is 112122201312112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211213102221211 - 2²³ = 211213093832603 is a prime.

It is a super-2 number, since 2×211213102221211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211213102221241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606551110605 + 105606551110606.

It is an arithmetic number, because the mean of its divisors is an integer number (105606551110606).

Almost surely, 2^{211213102221211} is an apocalyptic number.

211213102221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

211213102221211 is an equidigital number, since it uses as much as digits as its factorization.

211213102221211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 211213102221211 its reverse (112122201312112), we get a palindrome (323335303533323).

Subtracting from 211213102221211 its reverse (112122201312112), we obtain a palindrome (99090900909099).

The spelling of 211213102221211 in words is "two hundred eleven trillion, two hundred thirteen billion, one hundred two million, two hundred twenty-one thousand, two hundred eleven".