122242451 has 4 divisors (see below), whose sum is σ = 122781192. Its totient is φ = 121703712.

The previous prime is 122242429. The next prime is 122242457. The reversal of 122242451 is 154242221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122242451 - 2¹⁴ = 122226067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122242457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269030 + ... + 269483.

It is an arithmetic number, because the mean of its divisors is an integer number (30695298).

Almost surely, 2^122242451 is an apocalyptic number.

122242451 is a deficient number, since it is larger than the sum of its proper divisors (538741).

122242451 is an equidigital number, since it uses as much as digits as its factorization.

122242451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538740.

The product of its digits is 1280, while the sum is 23.

The square root of 122242451 is about 11056.3308108974. The cubic root of 122242451 is about 496.2958949743.

Adding to 122242451 its reverse (154242221), we get a palindrome (276484672).

The spelling of 122242451 in words is "one hundred twenty-two million, two hundred forty-two thousand, four hundred fifty-one".