2123122069 has 2 divisors, whose sum is σ = 2123122070. Its totient is φ = 2123122068.

The previous prime is 2123122013. The next prime is 2123122081. The reversal of 2123122069 is 9602213212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1519830225 + 603291844 = 38985^2 + 24562^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123122069 - 2⁹ = 2123121557 is a prime.

It is a super-2 number, since 2×2123122069² = 9015294639749681522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123122369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061561034 + 1061561035.

It is an arithmetic number, because the mean of its divisors is an integer number (1061561035).

Almost surely, 2^2123122069 is an apocalyptic number.

It is an amenable number.

2123122069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123122069 is an equidigital number, since it uses as much as digits as its factorization.

2123122069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2123122069 is about 46077.3487627055. The cubic root of 2123122069 is about 1285.2619629738.

The spelling of 2123122069 in words is "two billion, one hundred twenty-three million, one hundred twenty-two thousand, sixty-nine".