211012200277 has 2 divisors, whose sum is σ = 211012200278. Its totient is φ = 211012200276.

The previous prime is 211012200197. The next prime is 211012200299. The reversal of 211012200277 is 772002210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137310266916 + 73701933361 = 370554^2 + 271481^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012200277 - 2¹⁹ = 211011675989 is a prime.

It is a super-2 number, since 2×211012200277² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211012200977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506100138 + 105506100139.

It is an arithmetic number, because the mean of its divisors is an integer number (105506100139).

Almost surely, 2^211012200277 is an apocalyptic number.

It is an amenable number.

211012200277 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012200277 is an equidigital number, since it uses as much as digits as its factorization.

211012200277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 211012200277 its reverse (772002210112), we get a palindrome (983014410389).

The spelling of 211012200277 in words is "two hundred eleven billion, twelve million, two hundred thousand, two hundred seventy-seven".