211420201229 has 2 divisors, whose sum is σ = 211420201230. Its totient is φ = 211420201228.

The previous prime is 211420201211. The next prime is 211420201261. The reversal of 211420201229 is 922102024112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136452666025 + 74967535204 = 369395^2 + 273802^2 .

It is a cyclic number.

It is not a de Polignac number, because 211420201229 - 2²⁰ = 211419152653 is a prime.

It is a super-2 number, since 2×211420201229² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211420201198 and 211420201207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211420201529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710100614 + 105710100615.

It is an arithmetic number, because the mean of its divisors is an integer number (105710100615).

Almost surely, 2^211420201229 is an apocalyptic number.

It is an amenable number.

211420201229 is a deficient number, since it is larger than the sum of its proper divisors (1).

211420201229 is an equidigital number, since it uses as much as digits as its factorization.

211420201229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 211420201229 in words is "two hundred eleven billion, four hundred twenty million, two hundred one thousand, two hundred twenty-nine".