2122017749 has 2 divisors, whose sum is σ = 2122017750. Its totient is φ = 2122017748.

The previous prime is 2122017739. The next prime is 2122017761. The reversal of 2122017749 is 9477102212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1143454225 + 978563524 = 33815^2 + 31282^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122017749 - 2¹² = 2122013653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122017739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061008874 + 1061008875.

It is an arithmetic number, because the mean of its divisors is an integer number (1061008875).

Almost surely, 2^2122017749 is an apocalyptic number.

It is an amenable number.

2122017749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122017749 is an equidigital number, since it uses as much as digits as its factorization.

2122017749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2122017749 is about 46065.3638756930. The cubic root of 2122017749 is about 1285.0390857516.

The spelling of 2122017749 in words is "two billion, one hundred twenty-two million, seventeen thousand, seven hundred forty-nine".