122220005155 has 8 divisors (see below), whose sum is σ = 147046943232. Its totient is φ = 97520712768.

The previous prime is 122220005147. The next prime is 122220005183. The reversal of 122220005155 is 551500022221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122220005155 - 2³ = 122220005147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31909314 + ... + 31913143.

It is an arithmetic number, because the mean of its divisors is an integer number (18380867904).

Almost surely, 2^122220005155 is an apocalyptic number.

122220005155 is a deficient number, since it is larger than the sum of its proper divisors (24826938077).

122220005155 is an equidigital number, since it uses as much as digits as its factorization.

122220005155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63822845.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 122220005155 its reverse (551500022221), we get a palindrome (673720027376).

The spelling of 122220005155 in words is "one hundred twenty-two billion, two hundred twenty million, five thousand, one hundred fifty-five".