211100121210197 has 2 divisors, whose sum is σ = 211100121210198. Its totient is φ = 211100121210196.

The previous prime is 211100121210131. The next prime is 211100121210211. The reversal of 211100121210197 is 791012121001112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205316630107876 + 5783491102321 = 14328874^2 + 2404889^2 .

It is a cyclic number.

It is not a de Polignac number, because 211100121210197 - 2¹⁸ = 211100120948053 is a prime.

It is a super-2 number, since 2×211100121210197² (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 (211100121210497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550060605098 + 105550060605099.

It is an arithmetic number, because the mean of its divisors is an integer number (105550060605099).

Almost surely, 2^{211100121210197} is an apocalyptic number.

It is an amenable number.

211100121210197 is a deficient number, since it is larger than the sum of its proper divisors (1).

211100121210197 is an equidigital number, since it uses as much as digits as its factorization.

211100121210197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 211100121210197 in words is "two hundred eleven trillion, one hundred billion, one hundred twenty-one million, two hundred ten thousand, one hundred ninety-seven".