122210144251 has 4 divisors (see below), whose sum is σ = 131610924592. Its totient is φ = 112809363912.

The previous prime is 122210144249. The next prime is 122210144293. The reversal of 122210144251 is 152441012221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152441012221 = 6311 ⋅24154811.

It is a cyclic number.

It is not a de Polignac number, because 122210144251 - 2¹ = 122210144249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122210144851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4700390151 + ... + 4700390176.

It is an arithmetic number, because the mean of its divisors is an integer number (32902731148).

Almost surely, 2^122210144251 is an apocalyptic number.

122210144251 is a deficient number, since it is larger than the sum of its proper divisors (9400780341).

122210144251 is an equidigital number, since it uses as much as digits as its factorization.

122210144251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400780340.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 122210144251 its reverse (152441012221), we get a palindrome (274651156472).

The spelling of 122210144251 in words is "one hundred twenty-two billion, two hundred ten million, one hundred forty-four thousand, two hundred fifty-one".