122222253171 has 4 divisors (see below), whose sum is σ = 162963004232. Its totient is φ = 81481502112.

The previous prime is 122222253163. The next prime is 122222253203. The reversal of 122222253171 is 171352222221.

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

It is not a de Polignac number, because 122222253171 - 2³ = 122222253163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122222253071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20370375526 + ... + 20370375531.

It is an arithmetic number, because the mean of its divisors is an integer number (40740751058).

Almost surely, 2^122222253171 is an apocalyptic number.

122222253171 is a deficient number, since it is larger than the sum of its proper divisors (40740751061).

122222253171 is an equidigital number, since it uses as much as digits as its factorization.

122222253171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740751060.

The product of its digits is 6720, while the sum is 30.

Adding to 122222253171 its reverse (171352222221), we get a palindrome (293574475392).

The spelling of 122222253171 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred fifty-three thousand, one hundred seventy-one".