211450101449 has 2 divisors, whose sum is σ = 211450101450. Its totient is φ = 211450101448.

The previous prime is 211450101439. The next prime is 211450101487. The reversal of 211450101449 is 944101054112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207600519424 + 3849582025 = 455632^2 + 62045^2 .

It is a cyclic number.

It is not a de Polignac number, because 211450101449 - 2²⁰ = 211449052873 is a prime.

It is a super-2 number, since 2×211450101449² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211450101419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105725050724 + 105725050725.

It is an arithmetic number, because the mean of its divisors is an integer number (105725050725).

Almost surely, 2^211450101449 is an apocalyptic number.

It is an amenable number.

211450101449 is a deficient number, since it is larger than the sum of its proper divisors (1).

211450101449 is an equidigital number, since it uses as much as digits as its factorization.

211450101449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 211450101449 in words is "two hundred eleven billion, four hundred fifty million, one hundred one thousand, four hundred forty-nine".