122221101122221 has 8 divisors (see below), whose sum is σ = 124629366550304. Its totient is φ = 119825888623920.

The previous prime is 122221101122143. The next prime is 122221101122293.

122221101122221 is nontrivially palindromic in base 10.

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 122221101122221 - 2¹³ = 122221101114029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122221101122192 and 122221101122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221131122221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3263213535 + ... + 3263250988.

It is an arithmetic number, because the mean of its divisors is an integer number (15578670818788).

Almost surely, 2^{122221101122221} is an apocalyptic number.

It is an amenable number.

122221101122221 is a deficient number, since it is larger than the sum of its proper divisors (2408265428083).

122221101122221 is an equidigital number, since it uses as much as digits as its factorization.

122221101122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526464891.

The product of its (nonzero) digits is 256, while the sum is 22.

It can be divided in two parts, 12222110 and 1122221, that added together give a palindrome (13344331).

The spelling of 122221101122221 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty-one".