211200022122149 has 2 divisors, whose sum is σ = 211200022122150. Its totient is φ = 211200022122148.

The previous prime is 211200022122097. The next prime is 211200022122157. The reversal of 211200022122149 is 941221220002112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208109043220225 + 3090978901924 = 14425985^2 + 1758118^2 .

It is a cyclic number.

It is not a de Polignac number, because 211200022122149 - 2¹⁶ = 211200022056613 is a prime.

It is a super-4 number, since 4×211200022122149⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211200022124149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600011061074 + 105600011061075.

It is an arithmetic number, because the mean of its divisors is an integer number (105600011061075).

Almost surely, 2^{211200022122149} is an apocalyptic number.

It is an amenable number.

211200022122149 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200022122149 is an equidigital number, since it uses as much as digits as its factorization.

211200022122149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 211200022122149 in words is "two hundred eleven trillion, two hundred billion, twenty-two million, one hundred twenty-two thousand, one hundred forty-nine".