122206451 has 2 divisors, whose sum is σ = 122206452. Its totient is φ = 122206450.

The previous prime is 122206417. The next prime is 122206471. The reversal of 122206451 is 154602221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122206451 - 2¹⁰ = 122205427 is a prime.

It is not a weakly prime, because it can be changed into another prime (122206471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61103225 + 61103226.

It is an arithmetic number, because the mean of its divisors is an integer number (61103226).

Almost surely, 2^122206451 is an apocalyptic number.

122206451 is a deficient number, since it is larger than the sum of its proper divisors (1).

122206451 is an equidigital number, since it uses as much as digits as its factorization.

122206451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 122206451 is about 11054.7026644772. The cubic root of 122206451 is about 496.2471710211.

Adding to 122206451 its reverse (154602221), we get a palindrome (276808672).

The spelling of 122206451 in words is "one hundred twenty-two million, two hundred six thousand, four hundred fifty-one".