2122123397 has 2 divisors, whose sum is σ = 2122123398. Its totient is φ = 2122123396.

The previous prime is 2122123373. The next prime is 2122123453. The reversal of 2122123397 is 7933212212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081028641 + 1041094756 = 32879^2 + 32266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122123397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122123307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061061698 + 1061061699.

It is an arithmetic number, because the mean of its divisors is an integer number (1061061699).

Almost surely, 2^2122123397 is an apocalyptic number.

It is an amenable number.

2122123397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122123397 is an equidigital number, since it uses as much as digits as its factorization.

2122123397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 2122123397 is about 46066.5105798127. The cubic root of 2122123397 is about 1285.0604112968.

The spelling of 2122123397 in words is "two billion, one hundred twenty-two million, one hundred twenty-three thousand, three hundred ninety-seven".