20122146697 has 2 divisors, whose sum is σ = 20122146698. Its totient is φ = 20122146696.

The previous prime is 20122146589. The next prime is 20122146701. The reversal of 20122146697 is 79664122102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14752774521 + 5369372176 = 121461^2 + 73276^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122146697 - 2²⁷ = 19987928969 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122146197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061073348 + 10061073349.

It is an arithmetic number, because the mean of its divisors is an integer number (10061073349).

Almost surely, 2^20122146697 is an apocalyptic number.

It is an amenable number.

20122146697 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122146697 is an equidigital number, since it uses as much as digits as its factorization.

20122146697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

Adding to 20122146697 its reverse (79664122102), we get a palindrome (99786268799).

The spelling of 20122146697 in words is "twenty billion, one hundred twenty-two million, one hundred forty-six thousand, six hundred ninety-seven".