122220222121 has 8 divisors (see below), whose sum is σ = 125085207104. Its totient is φ = 119356266960.

The previous prime is 122220222119. The next prime is 122220222199. The reversal of 122220222121 is 121222022221.

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 122220222121 - 2¹ = 122220222119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220222521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14661 + ... + 494626.

It is an arithmetic number, because the mean of its divisors is an integer number (15635650888).

Almost surely, 2^122220222121 is an apocalyptic number.

It is an amenable number.

122220222121 is a deficient number, since it is larger than the sum of its proper divisors (2864984983).

122220222121 is an equidigital number, since it uses as much as digits as its factorization.

122220222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514911.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122220222121 its reverse (121222022221), we get a palindrome (243442244342).

The spelling of 122220222121 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".